roslyn: Build fails on missing generated files

I’m getting such errors occasionally, when building in VS. Re-building once or twice resolves the issue. I’m still trying to get a binary log of this.

31>BasicCompilerTestUtilities -> C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Debug\Dlls\BasicCompilerTestUtilities\Roslyn.Compilers.VisualBasic.Test.Utilities.dll
32>CSC : error CS2001: Source file 'C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Obj\ServicesVisualStudioImpl\Debug\Options\GridOptionPreviewControl.g.cs' could not be found.
32>CSC : error CS2001: Source file 'C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Obj\ServicesVisualStudioImpl\Debug\Options\OptionPreviewControl.g.cs' could not be found.
32>CSC : error CS2001: Source file 'C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Obj\ServicesVisualStudioImpl\Debug\Options\Style\NamingPreferences\ManageNamingStylesInfoDialog.g.cs' could not be found.
32>CSC : error CS2001: Source file 'C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Obj\ServicesVisualStudioImpl\Debug\Options\Style\NamingPreferences\NamingStyles\NamingStyleDialog.g.cs' could not be found.
32>CSC : error CS2001: Source file 'C:\Users\jcouv\.babun\cygwin\home\jcouv\repos\roslyn\Binaries\Obj\ServicesVisualStudioImpl\Debug\Options\Style\NamingPreferences\NamingStyleOptionPageControl.g.cs' could not be found.
32>Done building project "ServicesVisualStudioImpl.csproj" -- FAILED.

Tagging @jasonmalinowski

About this issue

Original URL
State: open
Created 7 years ago
Reactions: 4
Comments: 18 (12 by maintainers)

Most upvoted comments

Just go it again today:

22>CSC : error CS2001: Source file 'D:\repos\roslyn2\Binaries\Obj\EditorFeatures.Wpf\Debug\InlineRename\Dashboard\Dashboard.g.cs' could not be found.
22>Done building project "nruyfidv.tmp_proj" -- FAILED.
Build has been canceled.

jcouv on Dec 28, 2017

I was able to overcome issue .razor.g.cs could not be found by shortening path to MyComponent.razor to make sure that complete path to MyComponent.razor.g.cs is shorter than 255.

I have experienced this issue with `Source file c:.…\very long path\obj\Debug\net5.0\RazorDeclaration\Pages\MyComponent.razor.g.cs could not be found’ and complete path was 262 chars, so I just renamed component for example to ‘Short.razor’ and the error is gone.

walterX12 on Nov 26, 2021

My team has been seeing this since porting our WPF app to .NET Core, I have found that using the “Play” button to build and run the app rarely if ever runs into this issue, but Rebuild Solution will often fail to generate the xaml .g.cs files.

josephdwyer on May 13, 2020