Obscure error running msbuild

[Cyrille Claustre]

Hello,

I'm using Jenkins to build VS2017 projects (C#), with msbuild 15. My job produces compile errors (on a partial class), but running exactly the same command on the master (from Jenkins log) just goes fine.

The command (from job's log) is just an msbuild on the .sln file.

When I run a command shell on my master (Windows Server) and start the same command from the same path, msbuild compiles OK. I tried to copy the environment variables to my Jenkins configuration but it changed nothing.

I just can't figure out how the same command on the same computer can produce different results, especially weird compilation errors (the code compiles perfectly, even from a command line).

Thanks for helping.