Describe the bug

Hi All,

I am trying to build ROOT project as well as tests, but there is an error occurred when building, and it maybe related to pytest version. When I use same build steps but different pytest version, ROOT project build success with pytest version 6.1.1, but SofieCompileModels_PyTorch.vcxproj fails to compile with pytest version 6.2.5, the error as belows. I have checked if pytest version is 6.1.1, there is no pymva folder generated after cmake commands, and for pytest version 6.2.5, pymva folder generated after cmake commands. Could you please help have a look at this issue? Thanks a lot!

C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: The command "setlocal [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: .\emitFromPyTorch [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: if %errorlevel% neq 0 goto :cmEnd [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: :cmEnd [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: :cmErrorLevel [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: exit /b %1 [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: :cmDone [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: if %errorlevel% neq 0 goto :VCEnd [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(155,5): error MSB3073: :VCEnd" exited with code 9009. [F:\gitP\root-project\root\build_amd64\tmva\pymva\test\SofieCompileModels_PyTorch.vcxproj]

Expected behavior

Project build successfully.

To Reproduce

1. Open a x64 Native Tools Command Prompt for VS 2019
2. git clone --branch master https://github.com/root-project/root.git
3. cd root
4. mkdir build_amd64 && cd build_amd64
5. pip install pytest
6. cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_SYSTEM_VERSION=10.0.18362.0 -Droofit=off -Dtesting=ON -Droottest=ON ..
7. cmake --build . --config Release

Setup

1. Operating system: Windows 10
2. How you obtained ROOT, built it myself.