BUG: I did full clean install of flow launcher, but found this error, and cant fix it,

[TechySC23]

Checks

• I am using the latest version of Flow Launcher.
• I have checked that this issue has not already been reported.

Problem Description

Flow Launcher version: 1.19.5
OS Version: 26120.3671
IntPtr Length: 8
x64: True

Python Path: C:\Users\User\AppData\Local\Programs\Python\Python313\pythonw.exe
Node Path: E:\Desktop Folder\My folder\Apps\Node.JS\node.exe

Date: 04/08/2025 16:07:28
Exception:
System.ComponentModel.Win32Exception (0x80004005): The operation completed successfully.
at Flow.Launcher.Infrastructure.Win32Helper.SwitchToEnglishKeyboardLayout(Boolean backupPrevious) in C:\projects\flow-launcher\Flow.Launcher.Infrastructure\Win32Helper.cs:line 378
at Flow.Launcher.ViewModel.MainViewModel.Show() in C:\projects\flow-launcher\Flow.Launcher\ViewModel\MainViewModel.cs:line 1520
at Flow.Launcher.MainWindow.OnLoaded(Object sender, RoutedEventArgs _) in C:\projects\flow-launcher\Flow.Launcher\MainWindow.xaml.cs:line 140
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

And this happens when i start the program. it doesnt evens show its tray icon.

To Reproduce

1. ...
2. ...
3. ...

Screenshots

No response

Flow Launcher Version

1.19.5.10598, but upgrading to latest dev build after this issue, and posting it.

Windows Build Number

10.0.26120.3671

Error Log

2025-04-08.txt

[Jack251970]

Hello, could you please test the latest pre-release version: https://ci.appveyor.com/project/JohnTheGr8/flow-launcher/builds/51846293/artifacts?

[TechySC23]

@Jack251970 I downloaded Build 10755 of Flow Launcher, currently no issues with my current build which was upgraded after this issue was posted

[Jack251970]

If you encounter this issue again, feel free to ping me

[TechySC23]

@Jack251970 I got another issue, whenever i quit flow launcher from the app tray, there is an error which says something like JSONC not found or whatever, but then it does not quit it correctly, i then need to terminate the process from Task manager manually

[TechySC23]

• Not from the latest build, but the previous build i had, now upgrading to 10755

[Jack251970]

@Jack251970 I got another issue, whenever i quit flow launcher from the app tray, there is an error which says something like JSONC not found or whatever, but then it does not quit it correctly, i then need to terminate the process from Task manager manually

Could you please check latest prerelease.version and give me the log information?

Some bugs are dev branch only so they are possibly fixed in newer prerelease version.

[Jack251970]

I think it is fixed already in #3432.

[Jack251970]

Yeah, I have checked 10755, and this version should include #3432 fix.

[TechySC23]

Flow Launcher version: 1.19.5
OS Version: 26120.3671
IntPtr Length: 8
x64: True

Python Path: C:\Users\User\AppData\Local\Programs\Python\Python313\pythonw.exe
Node Path:

Date: 04/11/2025 09:44:07
Exception:
System.NullReferenceException: Object reference not set to an instance of an object.
at Flow.Launcher.Plugin.Program.Main.Save() in C:\projects\flow-launcher\Plugins\Flow.Launcher.Plugin.Program\Main.cs:line 86
at Flow.Launcher.Core.Plugin.PluginManager.Save() in C:\projects\flow-launcher\Flow.Launcher.Core\Plugin\PluginManager.cs:line 64
at Flow.Launcher.PublicAPIInstance.SaveAppAllSettings() in C:\projects\flow-launcher\Flow.Launcher\PublicAPIInstance.cs:line 111
at Flow.Launcher.MainWindow.OnLoaded(Object sender, RoutedEventArgs _) in C:\projects\flow-launcher\Flow.Launcher\MainWindow.xaml.cs:line 121
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

[different issue, when launching flow in portable mode and then merge the folder, with the older version UserData, themes, and plugins]

full log:

2025-04-11.txt

[TechySC23]

Very weird to be honest, the portable version of flow launcher is not so well made.

[TechySC23]

This issue is happening with ALL the versions from 1.19.5 with Programs plugin to 1.19.5.10755 with programs plugin, its only specific to programs plugin

[Jack251970]

This issue is happening with ALL the versions from 1.19.5 with Programs plugin to 1.19.5.10755 with programs plugin, its only specific to programs plugin

I think this issue comes from Program plugin and we should fix this issue with those steps:

1. Back these four directories under FL data directory.

2. Uninstall FL or delete portable directory.
3. Install Flow Launcher from new installer.
4. Open FL and then exit (You do not need to set anything here, this step is for initializing FL data directory)
5. Copy these four directory into FL data directory.
6. Restart FL