jit_init_thread_state(): the LLVM backend error on Mac (M3)

[optimist76]

Hi all,
I am trying to import sionna package using pycharm on my Mac (M3).
I am getting this error:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/__init__.py", line 107, in __getattribute__
    _import('mitsuba.mitsuba_' + variant + '_ext'),
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 657, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 556, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 1166, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: jit_init_thread_state(): the LLVM backend is inactive because the LLVM shared library ("libLLVM.dylib") could not be found! Set the DRJIT_LIBLLVM_PATH environment variable to specify its path.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/Test.py", line 5, in <module>
    import sionna
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/sionna/__init__.py", line 18, in <module>
    from . import rt
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/sionna/rt/__init__.py", line 29, in <module>
    mi.set_variant('llvm_ad_rgb')
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/__init__.py", line 317, in set_variant
    _import('mitsuba.ad.integrators')
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/python/ad/__init__.py", line 2, in <module>
    from .integrators import *
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/python/ad/integrators/__init__.py", line 25, in <module>
    importlib.import_module('mitsuba.ad.integrators.' + name)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/python/ad/integrators/prbvolpath.py", line 6, in <module>
    from .common import RBIntegrator, mis_weight
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/python/ad/integrators/common.py", line 8, in <module>
    class ADIntegrator(mi.CppADIntegrator):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/__init__.py", line 253, in __getattribute__
    result = module.__getattribute__(key)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/mitsuba/__init__.py", line 115, in __getattribute__
    raise AttributeError(e)
AttributeError: jit_init_thread_state(): the LLVM backend is inactive because the LLVM shared library ("libLLVM.dylib") could not be found! Set the DRJIT_LIBLLVM_PATH environment variable to specify its path.

Could somebody help me with this?
thanks.

[merlinND]

Hello @optimist76,

Closing as duplicate of #160.
Feel free to post there if you still encounter some issues.