PyAnsys Installation Error “Microsoft Visual C++ 14.0 or greater is required”

olvicam
olvicam Member Posts: 7
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in General Language Questions

Hello,

I am installing PyAnsys and get the error “Microsoft Visual C++ 14.0 or greater is required”:

But the matter is that I have already got it installed:

Could you give me a hint what is the matter?

Thanks

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Answers

  • German Martinez
    German Martinez Member, Employee, GitHub-issue-creator Posts: 13
    10 Comments Second Anniversary Name Dropper Ansys Employee
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    Hi @olvicam

    Which command did you use? Why aren't you using a virtual environment?

  • olvicam
    olvicam Member Posts: 7
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    Hi @German Martinez

    Thanks for the feedback.

    I am using the command given in the manual (... -m pip install...).

    Well, I do not use a virtual environment because I am not aware how it impact the matter.
    Could you give me a hint?

    Thanks

  • German Martinez
    German Martinez Member, Employee, GitHub-issue-creator Posts: 13
    10 Comments Second Anniversary Name Dropper Ansys Employee
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    It is always recommended to use venv to work with python because otherwise you are installing python packages system-wide and it might find issues with that.

    I would start by creating a venv in your directory:

    python3 -m venv .venv
.venv/Scripts/Activate.ps

pip install ansys-mapdl-reader
  • olvicam
    olvicam Member Posts: 7
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    @German Martinez , thanks for your hint and for what I learnt.
    Yes, I created the virtual environment (in Windows PowerShell the second command is

    1. <venv>\Scripts\Activate.ps1

    but it is not any kind of criticism, just to confirm that I did follow your advice).

    Unfortunately it ended up with the same outcome as before...

    So it seams that I have to reinstall the Microsoft Visual C++ if you do not have any other idea...

    Thanks

  • olvicam
    olvicam Member Posts: 7
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    Hello,
    finally I installed Microsoft Visual C++ Build Tools and then PyAnsys.
    But then when I run a macro which ran before I got the following messages:

    Does anybody have any idea what is the problem?

    Thanks

  • German Martinez
    German Martinez Member, Employee, GitHub-issue-creator Posts: 13
    10 Comments Second Anniversary Name Dropper Ansys Employee
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    Hi

    I am glad you figured out the Visual C++ tools part.

    For the other part, I see you have opened another thread for this. So I will reply there and reference it here:

    https://discuss.ansys.com/discussion/4814/crashes-are-to-be-expected-please-report-them-to-numpy-developers#latest

  • olvicam
    olvicam Member Posts: 7
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    Hi,
    thanks for the feedback.
    Yes, the Visual C++ issue seems to be solved.
    As of another one, I think I have to downgrade Python version to 3.12...
    At least it follows from my search in the Internet...
    Other scripts (not PyAnsys related ones) neither work if numpy is is imported...

  • German Martinez
    German Martinez Member, Employee, GitHub-issue-creator Posts: 13
    10 Comments Second Anniversary Name Dropper Ansys Employee
    ✭✭✭

    Because of problems in some of our dependencies (vtk, pyvista), many PyAnsys libraries haven't updated to Python 3.13 yet. Hopefully soon.

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