forum

[resolved] Unable to uninstall osu!lazer

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Total Posts
15
Topic Starter
Mavez
Problem details:
Hi, I downloaded osu!lazer a while back but wanted to remove it. When I went to the Control Panel and tried to uninstall it, nothing happens. Uninstalling the stable osu! works fine.

Video or screenshot showing the problem:
https://youtu.be/xRWvqqC0jzk


osu! version: Stable 20241030 (latest)
osu!lazer version: 2024.727.0
E2HORN
No one can delete the osu!laser!
We must only play osu!laser!
Our god Peppy ordered us to play osu!laser!
We can't disobey god!
Don't try to delete it!
Play osu!laser.
Play osu!laser.
Play osu!laser.
RIZW4N

Mavez wrote:

Problem details:
Hi, I downloaded osu!lazer a while back but wanted to remove it. When I went to the Control Panel and tried to uninstall it, nothing happens. Uninstalling the stable osu! works fine.

Video or screenshot showing the problem:
https://youtu.be/xRWvqqC0jzk


osu! version: Stable 20241030 (latest)
osu!lazer version: 2024.727.0
Did you try to uninstall the game from control panel?
spaceman_atlas
@OP: Can you maybe record a video of what happens when you try to uninstall or something? Bit difficult to get a good idea of what’s going on off of “doesn’t uninstall” alone. Also is there something in windows event viewer that looks potentially related?

@E2HORN: You’re being weird. Please stop. Everyone is free to play or uninstall any version of the game at any point for any reason.
Topic Starter
Mavez

RIZW4N wrote:

Did you try to uninstall the game from control panel?

spaceman_atlas wrote:

@OP: Can you maybe record a video of what happens when you try to uninstall or something? Bit difficult to get a good idea of what’s going on off of “doesn’t uninstall” alone. Also is there something in windows event viewer that looks potentially related?
yes
https://youtu.be/63CPhO5RYBA
I would show more, but it does nothing when I uninstall it. Literally nothing. There's nothing in the Windows Event Viewer that tells me anything important as well. So I don't know what's up
spaceman_atlas
Can you check if there is a velopack.log file in the %localappdata%/osulazer directory? If there is one, can you attach its contents?
xch00F
as an aside, the "administrative events" custom view in event viewer is generally much more helpful for troubleshooting than looking at full windows logs without filters
RIZW4N
First, run the repair program and then try to uninstall it. If that doesn't work, uninstall it using cmd with the following path:
C:\Users\[YourUsername]\AppData\Local\osulazer (edit this if osu!lazer is installed in a different location).

If the above methods fail, use third-party applications to uninstall the program. Like Revo Uninstaller or IObit Uninstaller.

As a final option, boot into Safe Mode and delete it from there.

Not sure why my last post got deleted someho
spaceman_atlas
@RIZW4N I deleted your post because it's not helpful / not the correct way to do things. The uninstaller should work. It should not be required to use third party software to uninstall osu!.
RIZW4N

spaceman_atlas wrote:

@RIZW4N I deleted your post because it's not helpful / not the correct way to do things. The uninstaller should work. It should not be required to use third party software to uninstall osu!.
Sorry if this sounds rude, but have you personally tried any of these steps to uninstall osu!lazer? It's not like I didn't attempt these methods myself. I was genuinely trying to be helpful by sharing what I knew. If there was a mistake in my post, it would have been more helpful to point it out rather than deleting it. If my post was incorrect or bothered anyone on this thread, I sincerely apologize. Thank you for understanding.
Topic Starter
Mavez

spaceman_atlas wrote:

Can you check if there is a velopack.log file in the %localappdata%/osulazer directory? If there is one, can you attach its contents?
Yup sure, here it is:

[update:13884] [09:55:13] [INFO] --
[update:13884] [09:55:13] [INFO] Starting Velopack Updater (0.0.915)
[update:13884] [09:55:13] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:13884] [09:55:13] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:13884] [09:55:13] [INFO] Verbose: false
[update:13884] [09:55:13] [INFO] Silent: false
[update:13884] [09:55:13] [INFO] Log File: None
[update:13884] [09:55:13] [INFO] Command: Uninstall
[update:13884] [09:55:13] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:22616] [09:55:22] [INFO] --
[update:22616] [09:55:22] [INFO] Starting Velopack Updater (0.0.915)
[update:22616] [09:55:22] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:22616] [09:55:22] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:22616] [09:55:22] [INFO] Verbose: false
[update:22616] [09:55:22] [INFO] Silent: false
[update:22616] [09:55:22] [INFO] Log File: None
[update:22616] [09:55:22] [INFO] Command: Uninstall
[update:22616] [09:55:22] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:964] [09:55:33] [INFO] --
[update:964] [09:55:33] [INFO] Starting Velopack Updater (0.0.915)
[update:964] [09:55:33] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:964] [09:55:33] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:964] [09:55:33] [INFO] Verbose: false
[update:964] [09:55:33] [INFO] Silent: false
[update:964] [09:55:33] [INFO] Log File: None
[update:964] [09:55:33] [INFO] Command: Uninstall
[update:964] [09:55:33] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:22952] [09:55:44] [INFO] --
[update:22952] [09:55:44] [INFO] Starting Velopack Updater (0.0.915)
[update:22952] [09:55:44] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:22952] [09:55:44] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:22952] [09:55:44] [INFO] Verbose: false
[update:22952] [09:55:44] [INFO] Silent: false
[update:22952] [09:55:44] [INFO] Log File: None
[update:22952] [09:55:44] [INFO] Command: Uninstall
[update:22952] [09:55:44] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:22928] [09:55:57] [INFO] --
[update:22928] [09:55:57] [INFO] Starting Velopack Updater (0.0.915)
[update:22928] [09:55:57] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:22928] [09:55:57] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:22928] [09:55:57] [INFO] Verbose: false
[update:22928] [09:55:57] [INFO] Silent: false
[update:22928] [09:55:57] [INFO] Log File: None
[update:22928] [09:55:57] [INFO] Command: Uninstall
[update:22928] [09:55:57] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:13936] [09:57:24] [INFO] --
[update:13936] [09:57:24] [INFO] Starting Velopack Updater (0.0.915)
[update:13936] [09:57:24] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:13936] [09:57:24] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:13936] [09:57:24] [INFO] Verbose: false
[update:13936] [09:57:24] [INFO] Silent: false
[update:13936] [09:57:24] [INFO] Log File: None
[update:13936] [09:57:24] [INFO] Command: Uninstall
[update:13936] [09:57:24] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8256] [10:11:04] [INFO] --
[update:8256] [10:11:04] [INFO] Starting Velopack Updater (0.0.915)
[update:8256] [10:11:04] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8256] [10:11:04] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8256] [10:11:04] [INFO] Verbose: false
[update:8256] [10:11:04] [INFO] Silent: false
[update:8256] [10:11:04] [INFO] Log File: None
[update:8256] [10:11:04] [INFO] Command: Uninstall
[update:8256] [10:11:04] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:3788] [05:18:11] [INFO] --
[update:3788] [05:18:11] [INFO] Starting Velopack Updater (0.0.915)
[update:3788] [05:18:11] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:3788] [05:18:11] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:3788] [05:18:11] [INFO] Verbose: false
[update:3788] [05:18:11] [INFO] Silent: false
[update:3788] [05:18:11] [INFO] Log File: None
[update:3788] [05:18:11] [INFO] Command: Uninstall
[update:3788] [05:18:11] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:19104] [05:24:58] [INFO] --
[update:19104] [05:24:58] [INFO] Starting Velopack Updater (0.0.915)
[update:19104] [05:24:58] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:19104] [05:24:58] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:19104] [05:24:58] [INFO] Verbose: false
[update:19104] [05:24:58] [INFO] Silent: false
[update:19104] [05:24:58] [INFO] Log File: None
[update:19104] [05:24:58] [INFO] Command: Uninstall
[update:19104] [05:24:58] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:13848] [19:01:53] [INFO] --
[update:13848] [19:01:53] [INFO] Starting Velopack Updater (0.0.915)
[update:13848] [19:01:53] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:13848] [19:01:53] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:13848] [19:01:53] [INFO] Verbose: false
[update:13848] [19:01:53] [INFO] Silent: false
[update:13848] [19:01:53] [INFO] Log File: None
[update:13848] [19:01:53] [INFO] Command: Uninstall
[update:13848] [19:01:53] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:6468] [19:01:55] [INFO] --
[update:6468] [19:01:55] [INFO] Starting Velopack Updater (0.0.915)
[update:6468] [19:01:55] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:6468] [19:01:55] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:6468] [19:01:55] [INFO] Verbose: false
[update:6468] [19:01:55] [INFO] Silent: false
[update:6468] [19:01:55] [INFO] Log File: None
[update:6468] [19:01:55] [INFO] Command: Uninstall
[update:6468] [19:01:55] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:31508] [19:02:04] [INFO] --
[update:31508] [19:02:04] [INFO] Starting Velopack Updater (0.0.915)
[update:31508] [19:02:04] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:31508] [19:02:04] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:31508] [19:02:04] [INFO] Verbose: false
[update:31508] [19:02:04] [INFO] Silent: false
[update:31508] [19:02:04] [INFO] Log File: None
[update:31508] [19:02:04] [INFO] Command: Uninstall
[update:31508] [19:02:04] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:18828] [19:03:34] [INFO] --
[update:18828] [19:03:34] [INFO] Starting Velopack Updater (0.0.915)
[update:18828] [19:03:34] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:18828] [19:03:34] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:18828] [19:03:34] [INFO] Verbose: false
[update:18828] [19:03:34] [INFO] Silent: false
[update:18828] [19:03:34] [INFO] Log File: None
[update:18828] [19:03:34] [INFO] Command: Uninstall
[update:18828] [19:03:34] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:4728] [19:04:00] [INFO] --
[update:4728] [19:04:00] [INFO] Starting Velopack Updater (0.0.915)
[update:4728] [19:04:00] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:4728] [19:04:00] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:4728] [19:04:00] [INFO] Verbose: false
[update:4728] [19:04:00] [INFO] Silent: false
[update:4728] [19:04:00] [INFO] Log File: None
[update:4728] [19:04:00] [INFO] Command: Uninstall
[update:4728] [19:04:00] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:13912] [19:04:09] [INFO] --
[update:13912] [19:04:09] [INFO] Starting Velopack Updater (0.0.915)
[update:13912] [19:04:09] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:13912] [19:04:09] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:13912] [19:04:09] [INFO] Verbose: false
[update:13912] [19:04:09] [INFO] Silent: false
[update:13912] [19:04:09] [INFO] Log File: None
[update:13912] [19:04:09] [INFO] Command: Uninstall
[update:13912] [19:04:09] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:10260] [02:19:22] [INFO] --
[update:10260] [02:19:22] [INFO] Starting Velopack Updater (0.0.915)
[update:10260] [02:19:22] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:10260] [02:19:22] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:10260] [02:19:22] [INFO] Verbose: false
[update:10260] [02:19:22] [INFO] Silent: false
[update:10260] [02:19:22] [INFO] Log File: None
[update:10260] [02:19:22] [INFO] Command: Uninstall
[update:10260] [02:19:22] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16848] [02:19:45] [INFO] --
[update:16848] [02:19:45] [INFO] Starting Velopack Updater (0.0.915)
[update:16848] [02:19:45] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16848] [02:19:45] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16848] [02:19:45] [INFO] Verbose: false
[update:16848] [02:19:45] [INFO] Silent: false
[update:16848] [02:19:45] [INFO] Log File: None
[update:16848] [02:19:45] [INFO] Command: Uninstall
[update:16848] [02:19:45] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:6044] [02:19:55] [INFO] --
[update:6044] [02:19:55] [INFO] Starting Velopack Updater (0.0.915)
[update:6044] [02:19:55] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:6044] [02:19:55] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:6044] [02:19:55] [INFO] Verbose: false
[update:6044] [02:19:55] [INFO] Silent: false
[update:6044] [02:19:55] [INFO] Log File: None
[update:6044] [02:19:55] [INFO] Command: Uninstall
[update:6044] [02:19:55] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:5388] [02:21:43] [INFO] --
[update:5388] [02:21:43] [INFO] Starting Velopack Updater (0.0.915)
[update:5388] [02:21:43] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:5388] [02:21:43] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:5388] [02:21:43] [INFO] Verbose: false
[update:5388] [02:21:43] [INFO] Silent: false
[update:5388] [02:21:43] [INFO] Log File: None
[update:5388] [02:21:43] [INFO] Command: Uninstall
[update:5388] [02:21:43] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8440] [02:21:44] [INFO] --
[update:8440] [02:21:44] [INFO] Starting Velopack Updater (0.0.915)
[update:8440] [02:21:44] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8440] [02:21:44] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8440] [02:21:44] [INFO] Verbose: false
[update:8440] [02:21:44] [INFO] Silent: false
[update:8440] [02:21:44] [INFO] Log File: None
[update:8440] [02:21:44] [INFO] Command: Uninstall
[update:8440] [02:21:44] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16508] [02:21:44] [INFO] --
[update:16508] [02:21:44] [INFO] Starting Velopack Updater (0.0.915)
[update:16508] [02:21:44] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16508] [02:21:44] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16508] [02:21:44] [INFO] Verbose: false
[update:16508] [02:21:44] [INFO] Silent: false
[update:16508] [02:21:44] [INFO] Log File: None
[update:16508] [02:21:44] [INFO] Command: Uninstall
[update:16508] [02:21:44] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:6284] [02:21:45] [INFO] --
[update:6284] [02:21:45] [INFO] Starting Velopack Updater (0.0.915)
[update:6284] [02:21:45] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:6284] [02:21:45] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:6284] [02:21:45] [INFO] Verbose: false
[update:6284] [02:21:45] [INFO] Silent: false
[update:6284] [02:21:45] [INFO] Log File: None
[update:6284] [02:21:45] [INFO] Command: Uninstall
[update:6284] [02:21:45] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16348] [02:21:46] [INFO] --
[update:16348] [02:21:46] [INFO] Starting Velopack Updater (0.0.915)
[update:16348] [02:21:46] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16348] [02:21:46] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16348] [02:21:46] [INFO] Verbose: false
[update:16348] [02:21:46] [INFO] Silent: false
[update:16348] [02:21:46] [INFO] Log File: None
[update:16348] [02:21:46] [INFO] Command: Uninstall
[update:16348] [02:21:46] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8964] [02:21:46] [INFO] --
[update:8964] [02:21:46] [INFO] Starting Velopack Updater (0.0.915)
[update:8964] [02:21:46] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8964] [02:21:46] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8964] [02:21:46] [INFO] Verbose: false
[update:8964] [02:21:46] [INFO] Silent: false
[update:8964] [02:21:46] [INFO] Log File: None
[update:8964] [02:21:46] [INFO] Command: Uninstall
[update:8964] [02:21:46] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:9012] [02:21:47] [INFO] --
[update:9012] [02:21:47] [INFO] Starting Velopack Updater (0.0.915)
[update:9012] [02:21:47] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:9012] [02:21:47] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:9012] [02:21:47] [INFO] Verbose: false
[update:9012] [02:21:47] [INFO] Silent: false
[update:9012] [02:21:47] [INFO] Log File: None
[update:9012] [02:21:47] [INFO] Command: Uninstall
[update:9012] [02:21:47] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:1180] [02:21:48] [INFO] --
[update:1180] [02:21:48] [INFO] Starting Velopack Updater (0.0.915)
[update:1180] [02:21:48] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:1180] [02:21:48] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:1180] [02:21:48] [INFO] Verbose: false
[update:1180] [02:21:48] [INFO] Silent: false
[update:1180] [02:21:48] [INFO] Log File: None
[update:1180] [02:21:48] [INFO] Command: Uninstall
[update:1180] [02:21:48] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8528] [02:25:50] [INFO] --
[update:8528] [02:25:50] [INFO] Starting Velopack Updater (0.0.915)
[update:8528] [02:25:50] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8528] [02:25:50] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8528] [02:25:50] [INFO] Verbose: false
[update:8528] [02:25:50] [INFO] Silent: false
[update:8528] [02:25:50] [INFO] Log File: None
[update:8528] [02:25:50] [INFO] Command: Uninstall
[update:8528] [02:25:50] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8096] [02:25:51] [INFO] --
[update:8096] [02:25:51] [INFO] Starting Velopack Updater (0.0.915)
[update:8096] [02:25:51] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8096] [02:25:51] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8096] [02:25:51] [INFO] Verbose: false
[update:8096] [02:25:51] [INFO] Silent: false
[update:8096] [02:25:51] [INFO] Log File: None
[update:8096] [02:25:51] [INFO] Command: Uninstall
[update:8096] [02:25:51] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:6292] [02:25:51] [INFO] --
[update:6292] [02:25:51] [INFO] Starting Velopack Updater (0.0.915)
[update:6292] [02:25:51] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:6292] [02:25:51] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:6292] [02:25:51] [INFO] Verbose: false
[update:6292] [02:25:51] [INFO] Silent: false
[update:6292] [02:25:51] [INFO] Log File: None
[update:6292] [02:25:51] [INFO] Command: Uninstall
[update:6292] [02:25:51] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:8068] [02:25:52] [INFO] --
[update:8068] [02:25:52] [INFO] Starting Velopack Updater (0.0.915)
[update:8068] [02:25:52] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:8068] [02:25:52] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:8068] [02:25:52] [INFO] Verbose: false
[update:8068] [02:25:52] [INFO] Silent: false
[update:8068] [02:25:52] [INFO] Log File: None
[update:8068] [02:25:52] [INFO] Command: Uninstall
[update:8068] [02:25:52] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:9624] [02:25:53] [INFO] --
[update:9624] [02:25:53] [INFO] Starting Velopack Updater (0.0.915)
[update:9624] [02:25:53] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:9624] [02:25:53] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:9624] [02:25:53] [INFO] Verbose: false
[update:9624] [02:25:53] [INFO] Silent: false
[update:9624] [02:25:53] [INFO] Log File: None
[update:9624] [02:25:53] [INFO] Command: Uninstall
[update:9624] [02:25:53] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:15956] [02:25:53] [INFO] --
[update:15956] [02:25:53] [INFO] Starting Velopack Updater (0.0.915)
[update:15956] [02:25:53] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:15956] [02:25:53] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:15956] [02:25:53] [INFO] Verbose: false
[update:15956] [02:25:53] [INFO] Silent: false
[update:15956] [02:25:53] [INFO] Log File: None
[update:15956] [02:25:53] [INFO] Command: Uninstall
[update:15956] [02:25:53] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:5404] [02:25:54] [INFO] --
[update:5404] [02:25:54] [INFO] Starting Velopack Updater (0.0.915)
[update:5404] [02:25:54] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:5404] [02:25:54] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:5404] [02:25:54] [INFO] Verbose: false
[update:5404] [02:25:54] [INFO] Silent: false
[update:5404] [02:25:54] [INFO] Log File: None
[update:5404] [02:25:54] [INFO] Command: Uninstall
[update:5404] [02:25:54] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16588] [02:31:15] [INFO] --
[update:16588] [02:31:15] [INFO] Starting Velopack Updater (0.0.915)
[update:16588] [02:31:15] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16588] [02:31:15] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16588] [02:31:15] [INFO] Verbose: false
[update:16588] [02:31:15] [INFO] Silent: false
[update:16588] [02:31:15] [INFO] Log File: None
[update:16588] [02:31:15] [INFO] Command: Uninstall
[update:16588] [02:31:15] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:7772] [02:31:15] [INFO] --
[update:7772] [02:31:15] [INFO] Starting Velopack Updater (0.0.915)
[update:7772] [02:31:15] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:7772] [02:31:15] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:7772] [02:31:15] [INFO] Verbose: false
[update:7772] [02:31:15] [INFO] Silent: false
[update:7772] [02:31:15] [INFO] Log File: None
[update:7772] [02:31:15] [INFO] Command: Uninstall
[update:7772] [02:31:15] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:15692] [02:31:16] [INFO] --
[update:15692] [02:31:16] [INFO] Starting Velopack Updater (0.0.915)
[update:15692] [02:31:16] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:15692] [02:31:16] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:15692] [02:31:16] [INFO] Verbose: false
[update:15692] [02:31:16] [INFO] Silent: false
[update:15692] [02:31:16] [INFO] Log File: None
[update:15692] [02:31:16] [INFO] Command: Uninstall
[update:15692] [02:31:16] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:14984] [02:31:16] [INFO] --
[update:14984] [02:31:16] [INFO] Starting Velopack Updater (0.0.915)
[update:14984] [02:31:16] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:14984] [02:31:16] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:14984] [02:31:16] [INFO] Verbose: false
[update:14984] [02:31:16] [INFO] Silent: false
[update:14984] [02:31:16] [INFO] Log File: None
[update:14984] [02:31:16] [INFO] Command: Uninstall
[update:14984] [02:31:16] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:10808] [02:31:17] [INFO] --
[update:10808] [02:31:17] [INFO] Starting Velopack Updater (0.0.915)
[update:10808] [02:31:17] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:10808] [02:31:17] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:10808] [02:31:17] [INFO] Verbose: false
[update:10808] [02:31:17] [INFO] Silent: false
[update:10808] [02:31:17] [INFO] Log File: None
[update:10808] [02:31:17] [INFO] Command: Uninstall
[update:10808] [02:31:17] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:9480] [02:31:18] [INFO] --
[update:9480] [02:31:18] [INFO] Starting Velopack Updater (0.0.915)
[update:9480] [02:31:18] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:9480] [02:31:18] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:9480] [02:31:18] [INFO] Verbose: false
[update:9480] [02:31:18] [INFO] Silent: false
[update:9480] [02:31:18] [INFO] Log File: None
[update:9480] [02:31:18] [INFO] Command: Uninstall
[update:9480] [02:31:18] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:10204] [02:32:21] [INFO] --
[update:10204] [02:32:21] [INFO] Starting Velopack Updater (0.0.915)
[update:10204] [02:32:21] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:10204] [02:32:21] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:10204] [02:32:21] [INFO] Verbose: false
[update:10204] [02:32:21] [INFO] Silent: false
[update:10204] [02:32:21] [INFO] Log File: None
[update:10204] [02:32:21] [INFO] Command: Uninstall
[update:10204] [02:32:21] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:14904] [02:32:22] [INFO] --
[update:14904] [02:32:22] [INFO] Starting Velopack Updater (0.0.915)
[update:14904] [02:32:22] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:14904] [02:32:22] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:14904] [02:32:22] [INFO] Verbose: false
[update:14904] [02:32:22] [INFO] Silent: false
[update:14904] [02:32:22] [INFO] Log File: None
[update:14904] [02:32:22] [INFO] Command: Uninstall
[update:14904] [02:32:22] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:1180] [02:32:22] [INFO] --
[update:1180] [02:32:22] [INFO] Starting Velopack Updater (0.0.915)
[update:1180] [02:32:22] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:1180] [02:32:22] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:1180] [02:32:22] [INFO] Verbose: false
[update:1180] [02:32:22] [INFO] Silent: false
[update:1180] [02:32:22] [INFO] Log File: None
[update:1180] [02:32:22] [INFO] Command: Uninstall
[update:1180] [02:32:22] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16204] [02:32:23] [INFO] --
[update:16204] [02:32:23] [INFO] Starting Velopack Updater (0.0.915)
[update:16204] [02:32:23] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16204] [02:32:23] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16204] [02:32:23] [INFO] Verbose: false
[update:16204] [02:32:23] [INFO] Silent: false
[update:16204] [02:32:23] [INFO] Log File: None
[update:16204] [02:32:23] [INFO] Command: Uninstall
[update:16204] [02:32:23] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:16304] [02:32:24] [INFO] --
[update:16304] [02:32:24] [INFO] Starting Velopack Updater (0.0.915)
[update:16304] [02:32:24] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:16304] [02:32:24] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:16304] [02:32:24] [INFO] Verbose: false
[update:16304] [02:32:24] [INFO] Silent: false
[update:16304] [02:32:24] [INFO] Log File: None
[update:16304] [02:32:24] [INFO] Command: Uninstall
[update:16304] [02:32:24] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:6328] [02:32:24] [INFO] --
[update:6328] [02:32:24] [INFO] Starting Velopack Updater (0.0.915)
[update:6328] [02:32:24] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:6328] [02:32:24] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:6328] [02:32:24] [INFO] Verbose: false
[update:6328] [02:32:24] [INFO] Silent: false
[update:6328] [02:32:24] [INFO] Log File: None
[update:6328] [02:32:24] [INFO] Command: Uninstall
[update:6328] [02:32:24] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:12092] [02:34:15] [INFO] --
[update:12092] [02:34:15] [INFO] Starting Velopack Updater (0.0.915)
[update:12092] [02:34:15] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:12092] [02:34:15] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:12092] [02:34:15] [INFO] Verbose: false
[update:12092] [02:34:15] [INFO] Silent: false
[update:12092] [02:34:15] [INFO] Log File: None
[update:12092] [02:34:15] [INFO] Command: Uninstall
[update:12092] [02:34:15] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:9836] [02:34:15] [INFO] --
[update:9836] [02:34:15] [INFO] Starting Velopack Updater (0.0.915)
[update:9836] [02:34:15] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:9836] [02:34:15] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:9836] [02:34:15] [INFO] Verbose: false
[update:9836] [02:34:15] [INFO] Silent: false
[update:9836] [02:34:15] [INFO] Log File: None
[update:9836] [02:34:15] [INFO] Command: Uninstall
[update:9836] [02:34:15] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:17052] [02:34:16] [INFO] --
[update:17052] [02:34:16] [INFO] Starting Velopack Updater (0.0.915)
[update:17052] [02:34:16] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:17052] [02:34:16] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:17052] [02:34:16] [INFO] Verbose: false
[update:17052] [02:34:16] [INFO] Silent: false
[update:17052] [02:34:16] [INFO] Log File: None
[update:17052] [02:34:16] [INFO] Command: Uninstall
[update:17052] [02:34:16] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:4808] [02:34:17] [INFO] --
[update:4808] [02:34:17] [INFO] Starting Velopack Updater (0.0.915)
[update:4808] [02:34:17] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:4808] [02:34:17] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:4808] [02:34:17] [INFO] Verbose: false
[update:4808] [02:34:17] [INFO] Silent: false
[update:4808] [02:34:17] [INFO] Log File: None
[update:4808] [02:34:17] [INFO] Command: Uninstall
[update:4808] [02:34:17] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:15556] [02:34:17] [INFO] --
[update:15556] [02:34:17] [INFO] Starting Velopack Updater (0.0.915)
[update:15556] [02:34:17] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:15556] [02:34:17] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:15556] [02:34:17] [INFO] Verbose: false
[update:15556] [02:34:17] [INFO] Silent: false
[update:15556] [02:34:17] [INFO] Log File: None
[update:15556] [02:34:17] [INFO] Command: Uninstall
[update:15556] [02:34:17] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
[update:11152] [02:34:18] [INFO] --
[update:11152] [02:34:18] [INFO] Starting Velopack Updater (0.0.915)
[update:11152] [02:34:18] [INFO] Location: C:\Users\notma\AppData\Local\osulazer\Update.exe
[update:11152] [02:34:18] [INFO] CWD: C:\Users\notma\AppData\Local\osulazer
[update:11152] [02:34:18] [INFO] Verbose: false
[update:11152] [02:34:18] [INFO] Silent: false
[update:11152] [02:34:18] [INFO] Log File: None
[update:11152] [02:34:18] [INFO] Command: Uninstall
[update:11152] [02:34:18] [ERROR] Uninstall error: This application is missing a package manifest (.nuspec) or it could not be parsed.
spaceman_atlas
@OP: Can you try downloading the lazer installer again, running it, and then trying to uninstall?

@RIZW4N: No I have not tried to use these steps, the point is that nobody should have to try these steps. If we cannot ship an app that can be uninstalled without custom cmd commands, third party software, or safe mode, then we have failed as developers and need to do better. What I'm trying to do is diagnose this failure rather than seek workarounds.
Topic Starter
Mavez
Yup, got this error:

https://imgur.com/nFiXDbg - Error message
https://imgur.com/zCSMal1 - Installer

I have no osu! application running, if you need video for it I can provide as well
spaceman_atlas
Can you try again after a PC restart like the error message says?
Topic Starter
Mavez
OH OKAY it worked, can uninstall it now :)

Thank you for your help, appreciate what you do here
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