Troubleshooting

Common issues and their solutions.

ModuleNotFoundError: No module named 'carla'

• Cause: The PYTHONPATH is not set correctly, or the .so file in site-packages was not renamed.
• Fix: Ensure you exported PYTHONPATH pointing to your venv/lib/python3.12/site-packages and that carla.so exists in that folder (see Installation Guide Step 4).

ImportError: ... module compiled using NumPy 1.x cannot be run in NumPy 2.x

• Cause: You have numpy version 2.0 or greater installed, but ROS 2 Jazzy’s cv_bridge requires NumPy 1.x.
• Fix: Run pip install "numpy<2".

NameError: name 'da_path' is not defined

• Cause: Older code version in depth_anything.py.
• Fix: Pull the latest changes or ensure da_path is defined as self.da_path in the class __init__ method.