path error?

[lzbushicai]

I failed to run conda install openvdb mesh2volume -c zilch -c conda-forge,
the annoconda prompt show :
(base) F:\ue5\mesh2volume>conda install openvdb mesh2volume -c zilch -c conda-forge Solving environment: failed InvalidVersionSpecError: Invalid version spec: =2.7
Whether I create or delete an enviroment or other commends,there will same error"
F:\ue5\mesh2volume>pushd C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\ 系统找不到指定的路径。 F:\ue5\mesh2volume>set VSCMD_DEBUG=1 F:\ue5\mesh2volume>CALL "VC\Auxiliary\Build\vcvars64.bat" -vcvars_ver=14.2 10.0.22000.0 系统找不到指定的路径。 (chinese means can't find the path),
now I don't know why the issure occures and how to deal with this problem,I want to convert my vdb file gennerated by OPENVDB to fbx、obj or mesh files

[zzilch]

I never met this problem, mabay you need a clean install of conda.
You can try reinstall conda with Miniconda, which is a minimum installer for conda without heavy burden like Anaconda.

[lzbushicai]

I installed miniconda in a new win, I created openvdb enviroment with package cmake zlib...,and when I installed openvdb and mesh2volume in env openvdb,the same error occur:C:\Users\msp>pushd C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\ 系统找不到指定的路径。 C:\Users\msp>set VSCMD_DEBUG=1 F:\ue5\mesh2volume>CALL "VC\Auxiliary\Build\vcvars64.bat" -vcvars_ver=14.2 10.0.22000.0 系统找不到指定的路径。
I can't understand why the error occur.
I am a fresh conda users,but I think it's not related to conda,