msbuild for dotnet/corefx fails against sln files

[pjanotti]

I saw similar issues but not exactly the same, so opening a new one.

On the dotnet/corefx enlistment on Windows I am able to invoke msbuild against the sln file of any src/System.*, however, on macOS (10.12) it fails with error about not finding metaproj file:

Project "/Users/pjanotti/s/github/pjanotti/corefx/src/System.IO.FileSystem/System.IO.FileSystem.sln" (1) is building "/Users/pjanotti/s/github/pjanotti/corefx/src/System.IO.FileSystem/src/System.IO.FileSystem.csproj.metaproj" (2) on node 1 (Clean target(s)).
/Users/pjanotti/s/github/pjanotti/corefx/src/System.IO.FileSystem/src/System.IO.FileSystem.csproj.metaproj : error MSB4025: The project file could not be loaded. Could not find file '/Users/pjanotti/s/github/pjanotti/corefx/src/System.IO.FileSystem/src/System.IO.FileSystem.csproj.metaproj'.

However, if I change the folder delimiter from "\" to "/" in the sln file it works without issues. That is surprising because for the csproj files under the sln file msbuild works with "\" just fine.

Thanks

[rainersigwald]

I think this is #2022. Closing as a duplicate--please comment if you think it's distinct.

[pjanotti]

Yeah, it is the same issue. Thanks @rainersigwald