c# - 在 Travis CI 上使用 Mono 5.14.0.177、msbuild 15.0、nuget 4.7.1 构建失败，但在 VirtualBox 中无法重现

Question

我在 Xenial 和 Trusty Ubuntu 的 Travis CI 上使用 Mono 5.14.0.177、msbuild 15.0、nuget 4.7.1 时出现构建失败，但在 VirtualBox、Ubuntu Xenial 中无法重现。

运行后:

mono tools/nuget/nuget.exe 恢复 pythonnet.sln -o 包

错误信息是:

Currently running NuGet.exe 4.1.0.
Updating NuGet.exe to 4.7.1.
Update successful.
MSBuild auto-detection: using msbuild version '15.0' from '/usr/lib/mono/msbuild/15.0/bin'.
Error parsing solution file at /home/travis/build/pythonnet/pythonnet/pythonnet.sln: Invalid Image

这是在 VirtualBox 中成功构建:

https://gist.github.com/denfromufa/23557331aba2ad548eba2fbff84f2307

Travis CI 构建失败:

https://travis-ci.org/pythonnet/pythonnet/jobs/419381040

GitHub 上有关此问题的更多详细信息:

https://github.com/pythonnet/pythonnet/pull/698

Answer 1

通过降级到 msbuild 14.0，此问题已在 pythonnet Travis CI 中暂时修复:

cmd = "{0} update -self".format(nuget)
self.debug_print("Updating NuGet: {0}".format(cmd))
subprocess.check_call(cmd, shell=use_shell)
cmd = "{0} restore pythonnet.sln  -MSBuildVersion 14 -o packages".format(nuget)

https://github.com/pythonnet/pythonnet/blob/master/setup.py#L332