Problem installing BlenderBIM on Mac M1, Blender 3.5.1

R by roy on 21 May 2023, edited 21 May 2023 #

I have attempted to install BlenderBIM several times according to the documentation and video tutorial, but after installing, when I attempt to check the box next to the add-on to activate it, I get this error:


Traceback (most recent call last):

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/__init__.py", line 89, in <module>

    refresh()

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/__init__.py", line 76, in refresh

    if not Git.refresh(path=path):

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/cmd.py", line 318, in refresh

    cls().version()

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/cmd.py", line 741, in <lambda>

    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/cmd.py", line 1315, in _call_process

    return self.execute(call, **exec_kwargs)

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/cmd.py", line 1109, in execute

    raise GitCommandError(redacted_command, status, stderr_value, stdout_value)

git.exc.GitCommandError: Cmd('git') failed due to: exit code(1)

  cmdline: git version

  stderr: 'xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun'


The above exception was the direct cause of the following exception:


Traceback (most recent call last):

  File "/Applications/Blender.app/Contents/Resources/3.5/scripts/modules/addon_utils.py", line 333, in enable

    mod = __import__(module_name)

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/__init__.py", line 40, in <module>

    import blenderbim.bim

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/bim/__init__.py", line 22, in <module>

    from . import handler, ui, prop, operator, helper

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/bim/handler.py", line 23, in <module>

    import blenderbim.tool as tool

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/tool/__init__.py", line 33, in <module>

    from blenderbim.tool.ifcgit import IfcGit

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/tool/ifcgit.py", line 6, in <module>

    import git

  File "/Users/roy/Library/Application Support/Blender/3.5/scripts/addons/blenderbim/libs/site/packages/git/__init__.py", line 91, in <module>

    raise ImportError("Failed to initialize: {0}".format(exc)) from exc

ImportError: Failed to initialize: Cmd('git') failed due to: exit code(1)

  cmdline: git version

  stderr: 'xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun'

Any help resolving this would be greatly appreciated.

B by brunopostle on 21 May 2023, edited 21 May 2023 #

This looks like a bug. The new Git module in blenderbim needs the git executable to be installed in your PATH, but it should fail gracefully and let you proceed. This was tested on Linux and Windows, but not on OSX.

Can anyone help here? The message looks like there may be a missing tool called xcrun, or possibly a missing path /Library/Developer/CommandLineTools.

Do other users have problems on OSX? Stackoverflow suggests this is a problem caused by a broken xcode installation.

B by brunopostle on 21 May 2023 # +1 votes

@roy I committed a workaround, so the next blenderbim daily should run for you. Though it looks like the basic problem is that you have a broken xcode installation, see: https://apple.stackexchange.com/questions/374744/how-do-i-solve-the-problem-of-invalid-active-developer-path-when-attempting-to

B by brunopostle on 21 May 2023 #

@roy can you try blenderbim 230512

R by roy on 21 May 2023 # +1 votes

@brunopostle Thank you for the helpful response(s).

I ran xcode-select --install and that seems to have resolved the issue.