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BUG: cannot install PluginManager #4251

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Open
BUG: cannot install PluginManager#4251
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bugSomething isn't working

Description

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  • I have checked that this issue has not already been reported.

  • I am using the latest version of Flow Launcher.

  • I am using the prerelease version of Flow Launcher.

Problem Description

Hello,
I freshly installed the Flowmanager with chosolatey and then tried to install the pluginmanager and this error appeared:

Flow Launcher version: 2.0.3
OS Version: 26200.7705
IntPtr Length: 8
x64: True

Python Path:
Node Path:

Date: 02/04/2026 14:07:45
Exception:
Plugins Manager Exception:
Websites: https://github.com/Flow-Launcher/Flow.Launcher
Author: Jeremy Wu
Version: 2.0.3
Flow.Launcher.Core.ExternalPlugins.FlowPluginException: Value cannot be null. (Parameter 'source')
---> System.ArgumentNullException: Value cannot be null. (Parameter 'source')
at System.Linq.ThrowHelper.ThrowArgumentNullException(Exception Argument argument)
at System.Linq.Enumerable.Where[TSource](IEnumerable1 source, Func2 predicate)
at Flow.Launcher.Plugin.PluginsManager.PluginsManager.RequestIn stallOrUpdateAsync(String search, CancellationToken token, Boolean usePrimaryUrlOnly) in C:\projects\flow-launcher\Plugins\Flow.Launcher.Plugin.Plugi nsManager\PluginsManager.cs:line 689
at Flow.Launcher.Plugin.PluginsManager.Main.QueryAsync(Query query, CancellationToken token) in C:\projects\flow-launcher\Plugins\Flow.Launcher.Plugin.Plugi nsManager\Main.cs:line 49
at Flow.Launcher.Core.Plugin.PluginManager.<>c__DisplayClass35_0.d.MoveNext() in C:\projects\flow-launcher\Flow.Launcher.Core\Plugin\PluginMa nager.cs:line 351
--- End of stack trace from previous location ---
at Flow.Launcher.Infrastructure.Stopwatch.DebugAsync(String className, String message, Func`1 action, String methodName) in C:\projects\flow-launcher\Flow.Launcher.Infrastructure\Stopw atch.cs:line 31
at Flow.Launcher.Core.Plugin.PluginManager.QueryForPluginAsync( PluginPair pair, Query query, CancellationToken token) in C:\projects\flow-launcher\Flow.Launcher.Core\Plugin\PluginMa nager.cs:line 350
--- End of inner exception stack trace ---
at Flow.Launcher.Core.Plugin.PluginManager.<>c__DisplayClass35_1.b__1(ActionContext ) in C:\projects\flow-launcher\Flow.Launcher.Core\Plugin\PluginMa nager.cs:line 379
at Flow.Launcher.Plugin.Result.ExecuteAsync(ActionContext context) in /
/Flow.Launcher.Plugin/Result.cs:line 281
at Flow.Launcher.ViewModel.MainViewModel.OpenResultAsync(String index) in C:\projects\flow-launcher\Flow.Launcher\ViewModel\MainViewMo del.cs:line 518
at CommunityToolkit.Mvvm.Input.AsyncRelayCommand.AwaitAndThrowI fFailed(Task executionTask)
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(D elegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Objec t source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

To Reproduce

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

Screenshots

No response

Flow Launcher Version

2.0.3

Windows Build Number

10.0.26200.7705

Error Log

Details
System.Linq.Enumerable.Join(IEnumerable outer, IEnumerable inner, Func outerKeySelector, Func innerKeySelector, Func resultSelector, IEqualityComparer comparer) x 2 at async Task Flow.Launcher.Core.Plugin.PluginInstaller.CheckForPluginUpdatesAsync(Action> updateAllPlugins, bool silentUpdate, bool usePrimaryUrlOnly, CancellationToken token) in C:/projects/flow-launcher/Flow.Launcher.Core/Plugin/PluginIn staller.cs:line 295 at async void Flow.Launcher.App.AutoPluginUpdates()+(?) => { } [0] in C:/projects/flow-launcher/Flow.Launcher/App.xaml.cs:line 311 13:48:30.1722+01:00 - ERROR - ImageLoader.GetThumbnailResult - Failed to load SVG image from path C:\Users\l.jerzsabek\Downloads\diagram.drawio.svg: Style declaration ending bracket missing EXCEPTION OCCURS: SharpVectors.Dom.DomException: Style declaration ending bracket missing at string SharpVectors.Dom.Css.CssStyleDeclaration.ParseString(string cssText) at new SharpVectors.Dom.Css.CssStyleDeclaration(ref string css, CssRule parentRule, bool readOnly, CssStyleSheetType origin) at CssFontFaceRule SharpVectors.Dom.Css.CssFontFaceRule.Parse(ref string css, object parent, bool readOnly, IList replacedStrings, CssStyleSheetType origin) at CssRule SharpVectors.Dom.Css.CssRuleList.TryParse(ref string css, object parent, bool readOnly, IList replacedStrings, CssStyleSheetType origin) at void SharpVectors.Dom.Css.CssRuleList.Parse(ref string css, object parent, bool readOnly, IList replacedStrings, CssStyleSheetType origin) at new SharpVectors.Dom.Css.CssRuleList(ref string cssText, object parent, IList replacedStrings, bool readOnly, CssStyleSheetType origin) x 2 at ICssRuleList SharpVectors.Dom.Css.CssStyleSheet.get_CssRules() at void SharpVectors.Dom.Svg.SvgDocument.GetFontUrl(CssStyleSheet cssSheet, IList> fontUrls, IDictionary styledFontIds) at IList> SharpVectors.Dom.Svg.SvgDocument.GetFontUrls() at void SharpVectors.Dom.Svg.SvgDocument.OnLoaded() at void SharpVectors.Dom.Css.CssXmlDocument.Load(XmlReader reader) at void SharpVectors.Dom.Svg.SvgDocument.Load(string filename) at void SharpVectors.Renderers.Utils.WpfSvgWindow.LoadDocument(Uri documentUri, WpfDrawingSettings drawingSettings) at DrawingGroup SharpVectors.Converters.FileSvgReader.LoadFile(Uri svgUri) at DrawingGroup SharpVectors.Converters.FileSvgReader.Read(Uri svgUri) at RenderTargetBitmap Flow.Launcher.Infrastructure.Image.ImageLoader.LoadSvgImage( string path, bool loadFullImage) in C:/projects/flow-launcher/Flow.Launcher.Infrastructure/Image /ImageLoader.cs:line 380 at ImageResult Flow.Launcher.Infrastructure.Image.ImageLoader.GetThumbnailR esult(ref string path, bool loadFullImage) in C:/projects/flow-launcher/Flow.Launcher.Infrastructure/Image /ImageLoader.cs:line 247 ">13:36:13.3959+01:00 - INFO - App.OnStartup - Begin Flow Launcher startup ----------------------------------------------------
13:36:13.3959+01:00 - INFO - App.OnStartup - Runtime info:
Flow Launcher version: 2.0.3
OS Version: 26200.7705
IntPtr Length: 8
x64: True
13:36:13.4173+01:00 - INFO - BinaryStorage.TryLoad - Cache file not exist, load default data
13:36:13.9404+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:36:13.9981+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:36:13.9981+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:36:13.9990+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://raw.githubusercontent.com/Flow-Launcher/Flow.Launcher.PluginsManifest/main/plugins.json
13:36:13.9990+01:00 - INFO - ImageLoader.InitializeAsync - Preload images cost <1ms>
13:36:14.0203+01:00 - INFO - ImageLoader.InitializeAsync - Number of preload images is <4>, Images Number: 4, Unique Items 4
13:36:56.0709+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Plug insManifest@main/plugins.json with response InternalServerError
13:36:56.0879+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Pl uginsManifest@main/plugins.json with response InternalServerError
13:37:38.0593+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://raw.githubusercontent.com/Flow-Launcher/Flow.Launche r.PluginsManifest/main/plugins.json with response InternalServerError
13:37:38.0706+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.P luginsManifest@main/plugins.json with response InternalServerError
13:37:38.0804+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Plugin Indicator> is <21ms>
13:37:38.0804+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Process Killer> is <34ms>
13:37:38.0804+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <URL> is <56ms>
13:37:38.0804+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:37:38.0804+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:37:38.0804+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:37:38.0804+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Shell> is <37ms>
13:37:38.0804+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://raw.githubusercontent.com/Flow-Launcher/Flow.Launcher.PluginsManifest/main/plugins.json
13:37:38.0804+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <System Commands> is <36ms>
13:37:38.0967+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Web Searches> is <53ms>
13:37:38.1182+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Calculator> is <67ms>
13:37:38.1418+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Explorer> is <134ms>
13:37:38.1596+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Windows Settings> is <112ms>
13:37:38.1596+01:00 - INFO - BinaryStorage.TryLoadAsync - Cache file not exist, load default data
13:37:38.1855+01:00 - INFO - BinaryStorage.TryLoadAsync - Cache file not exist, load default data
13:37:38.1886+01:00 - INFO - Main.InitAsync - Preload programs cost <36ms>
13:37:38.1886+01:00 - INFO - Main.InitAsync - Number of preload win32 programs <0>
13:37:38.1886+01:00 - INFO - Main.InitAsync - Number of preload uwps <0>
13:37:38.1886+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Program> is <142ms>
13:37:38.2222+01:00 - ERROR - - ------------- BEGIN Flow.Launcher.Plugin.Program exception -------------
13:37:38.2222+01:00 - ERROR - -
Exception full name: System.IO.FileNotFoundException
Error status: UNKNOWN
Class name: Win32
Calling method: ExeProgram
Program path: C:\Program Files\DBeaver\dbeaver.exe
InnerException number: 1
Exception message: C:\Program Files\DBeaver\dbeaver.exe
Exception error type: HResult -2147024894
Exception thrown in called method: System.Diagnostics.FileVersionInfo GetVersionInfo(System.String)
Possible interpretation of the error: File not found when trying to load the program from C:\Program Files\DBeaver\dbeaver.exe
Possible resolution: Not yet known
13:37:38.2222+01:00 - ERROR - - ------------- END Flow.Launcher.Plugin.Program exception -------------
13:37:38.2636+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Browser Bookmarks> is <220ms>
13:37:40.4867+01:00 - INFO - Main.IndexProgramsAsync - UWPProgram index cost <2294ms>
13:37:40.8661+01:00 - ERROR - - ------------- BEGIN Flow.Launcher.Plugin.Program exception -------------
13:37:40.8661+01:00 - ERROR - -
Exception full name: System.Runtime.InteropServices.COMException
Error status: UNKNOWN
Class name: IShellLinkW
Calling method: retrieveTargetPath
Program path: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\Windows Media Player Legacy.lnk
InnerException number: 1
Exception message: Unexpected HRESULT has been returned from a call to a COM component.
Exception error type: HResult -2147467259
Exception thrown in called method: Void GetDescription(Windows.Win32.Foundation.PWSTR, Int32)
Possible interpretation of the error: Error caused likely due to trying to get the description of the program
Possible resolution: Not yet known
13:37:40.8661+01:00 - ERROR - - ------------- END Flow.Launcher.Plugin.Program exception -------------
13:37:41.9533+01:00 - INFO - Main.IndexProgramsAsync - Win32Program index cost <3761ms>
13:38:20.1023+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Pl uginsManifest@main/plugins.json with response InternalServerError
13:39:02.1214+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Plug insManifest@main/plugins.json with response InternalServerError
13:39:02.1257+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://raw.githubusercontent.com/Flow-Launcher/Flow.Launche r.PluginsManifest/main/plugins.json with response InternalServerError
13:39:02.1257+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.P luginsManifest@main/plugins.json with response InternalServerError
13:39:02.1257+01:00 - INFO - PluginManager.InitializePluginsAsync - Total init cost for <Plugins Manager> is <84078ms>
13:39:03.3849+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:39:03.3849+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:39:03.3849+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.PluginsManifest@main/plugins.json
13:39:03.3849+01:00 - INFO - CommunityPluginSource.FetchAsync - Loading plugins from https://raw.githubusercontent.com/Flow-Launcher/Flow.Launcher.PluginsManifest/main/plugins.json
13:39:03.8056+01:00 - INFO - App.OnStartup - End Flow Launcher startup ----------------------------------------------------
13:39:03.8056+01:00 - INFO - App.OnStartup - Startup cost <170758ms>
13:39:45.3933+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://gcore.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Pl uginsManifest@main/plugins.json with response InternalServerError
13:40:27.3941+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://raw.githubusercontent.com/Flow-Launcher/Flow.Launche r.PluginsManifest/main/plugins.json with response InternalServerError
13:40:27.4101+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://cdn.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.Plug insManifest@main/plugins.json with response InternalServerError
13:40:27.4101+01:00 - WARN - CommunityPluginSource.FetchAsync - Failed to load resource https://fastly.jsdelivr.net/gh/Flow-Launcher/Flow.Launcher.P luginsManifest@main/plugins.json with response InternalServerError
13:48:17.5110+01:00 - ERROR - ErrorReporting.TaskSchedulerUnobservedTaskException - Unobserved task exception occurred.
EXCEPTION OCCURS: System.ArgumentNullException: Value cannot be null. (Parameter 'inner')
at void System.Linq.ThrowHelper.ThrowArgumentNullException(Exception Argument argument)
at IEnumerable<TResult> System.Linq.Enumerable.Join<TOuter, TInner, TKey, TResult>(IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, TInner, TResult> resultSelector, IEqualityComparer<TKey> comparer) x 2
at async Task Flow.Launcher.Core.Plugin.PluginInstaller.CheckForPluginUpdatesAsync(Action<List<PluginUpdateInfo>> updateAllPlugins, bool silentUpdate, bool usePrimaryUrlOnly, CancellationToken token) in C:/projects/flow-launcher/Flow.Launcher.Core/Plugin/PluginIn staller.cs:line 295
at async void Flow.Launcher.App.AutoPluginUpdates()+(?) => { } [0] in C:/projects/flow-launcher/Flow.Launcher/App.xaml.cs:line 311

13:48:30.1722+01:00 - ERROR - ImageLoader.GetThumbnailResult - Failed to load SVG image from path C:\Users\l.jerzsabek\Downloads\diagram.drawio.svg: Style declaration ending bracket missing
EXCEPTION OCCURS: SharpVectors.Dom.DomException: Style declaration ending bracket missing
at string SharpVectors.Dom.Css.CssStyleDeclaration.ParseString(string cssText)
at new SharpVectors.Dom.Css.CssStyleDeclaration(ref string css, CssRule parentRule, bool readOnly, CssStyleSheetType origin)
at CssFontFaceRule SharpVectors.Dom.Css.CssFontFaceRule.Parse(ref string css, object parent, bool readOnly, IList<string> replacedStrings, CssStyleSheetType origin)
at CssRule SharpVectors.Dom.Css.CssRuleList.TryParse(ref string css, object parent, bool readOnly, IList<string> replacedStrings, CssStyleSheetType origin)
at void SharpVectors.Dom.Css.CssRuleList.Parse(ref string css, object parent, bool readOnly, IList<string> replacedStrings, CssStyleSheetType origin)
at new SharpVectors.Dom.Css.CssRuleList(ref string cssText, object parent, IList<string> replacedStrings, bool readOnly, CssStyleSheetType origin) x 2
at ICssRuleList SharpVectors.Dom.Css.CssStyleSheet.get_CssRules()
at void SharpVectors.Dom.Svg.SvgDocument.GetFontUrl(CssStyleSheet cssSheet, IList<Tuple<string, SvgFontFaceElement>> fontUrls, IDictionary<string, string> styledFontIds)
at IList<Tuple<string, SvgFontFaceElement>> SharpVectors.Dom.Svg.SvgDocument.GetFontUrls()
at void SharpVectors.Dom.Svg.SvgDocument.OnLoaded()
at void SharpVectors.Dom.Css.CssXmlDocument.Load(XmlReader reader)
at void SharpVectors.Dom.Svg.SvgDocument.Load(string filename)
at void SharpVectors.Renderers.Utils.WpfSvgWindow.LoadDocument(Uri documentUri, WpfDrawingSettings drawingSettings)
at DrawingGroup SharpVectors.Converters.FileSvgReader.LoadFile(Uri svgUri)
at DrawingGroup SharpVectors.Converters.FileSvgReader.Read(Uri svgUri)
at RenderTargetBitmap Flow.Launcher.Infrastructure.Image.ImageLoader.LoadSvgImage( string path, bool loadFullImage) in C:/projects/flow-launcher/Flow.Launcher.Infrastructure/Image /ImageLoader.cs:line 380
at ImageResult Flow.Launcher.Infrastructure.Image.ImageLoader.GetThumbnailR esult(ref string path, bool loadFullImage) in C:/projects/flow-launcher/Flow.Launcher.Infrastructure/Image /ImageLoader.cs:line 247

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