CS1504 with AndroidBoundLayout when building with .NET 8 SDK

[rgroenewoudt]

Android application type

.NET Android (net7.0-android, etc.)

Affected platform version

VS 2022 17.8

Description

After upgrading to VS2022 17.8, I cannot build my .NET 7 Android app anymore. Same issue with dotnet build.

For every Android layout file with build action 'AndroidBoundLayout', I'm getting the build error:

project\obj\Debug\net7.0-android33.0\generated\Binding.About.g.cs(27,11): error CS1504: Source file 'Resources\Layout\About.xml' could not be opened -- Could not find file.

The generated .cs file contains code #line 2 "Resources\Layout\About.xml" which seems to break compiling.

Steps to Reproduce

Use .NET 8 SDK to build a project with AndroidBoundLayout file.

Did you find any workaround?

No response

Relevant log output

No response

[dellis1972]

@rgroenewoudt have you tried deleting the bin and obj directories and completely rebuilding?

[rgroenewoudt]

@dellis1972 Of course, no difference.

[rgroenewoudt]

This might be related to dotnet/sdk#34438

[dellis1972]

Yup, I think there was a change in the SDK which caused this.
A fix for LayoutBindings went into .net 8 via 2b0761b. But afaik it was not back ported to .net 7.

[rgroenewoudt]

Are there tests missing for building a project with AndroidBoundLayout?

[dellis1972]

@rgroenewoudt not on the .net android side, we have a number of tests which check that this works. Thats how we found the fix which went into 2b0761b

[rgroenewoudt]

The workaround <EmbedUntrackedSources>false</EmbedUntrackedSources> works.

It might be worth it to have a test for building the previous version with the latest SDK.

[dellis1972]

@jonpryor this is the #line issue we spoke about. Apparently disabling EmbedUntrackedSources MSBuild property fixes the issue...

[dellis1972]

Looks like its related to SourceLink? https://github.com/dotnet/sourcelink/blob/f9585b334d71b93b3fb7d0023957b538b6b72360/docs/README.md?plain=1#L58