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import error: Open Multi-Processing? #191
Description
When I import only cloudcompy, the program runs normally. However, when I add import open3d after it, the following error occurs:
(myenvpy310) zxc@zxcdeMacBook-Pro CloudComPy310 % python /Users/zxc/Documents/Projects/0731reconstruct/zxcTest/cclabel_main.py
JsonRPCPlugin::JsonRPCPlugin
OMP: Error #179: Function pthread_mutex_init failed:
OMP: System error #22: Invalid argument
zsh: abort python /Users/zxc/Documents/Projects/0731reconstruct/zxcTest/cclabel_main.py
If I swap the order of the imports, i.e., import open3d first and then cloudcompy, I get the following error:
Traceback (most recent call last):
File "/Users/zxc/Documents/Projects/0731reconstruct/zxcTest/cclabel_main.py", line 3, in
import ccLabel
File "/Users/zxc/Documents/Projects/0731reconstruct/zxcTest/ccLabel.py", line 3, in
import cloudComPy as cc
File "/Users/zxc/Downloads/CloudComPy310/cloudComPy/init.py", line 34, in
from _cloudComPy import *
ImportError: dlopen(/Users/zxc/Downloads/CloudComPy310/CloudCompare/CloudCompare.app/Contents/Frameworks/_cloudComPy.cpython-310-darwin.so, 0x0002): Symbol not found: _opj_decoder_set_strict_mode
Referenced from: /Users/zxc/Downloads/CloudComPy310/CloudCompare/CloudCompare.app/Contents/Frameworks/libgdal.32.dylib
Expected in: /opt/miniconda3/envs/myenvpy310/lib/libopenjp2.2.4.0.dylib
I use the .zsh to activate these, could you help me figure out the soulution?
Activity
prascle commentedon Aug 31, 2024
Hello, sorry for the late reply, I didn't have my mac to test.
I can't reproduce your problem. I work with the conda CloudComPy310 environment described in the documentation. I add open3d to the conda environment with
conda install open3d. In this environment, I can import cloudComPy and open3d in any order and execute cloudComPy and open3d scripts (I use. bin/condaCloud.zsh activate CloudComPy310to load the conda environment and set the PYTHONPATH for cloudComPy).However, the implementation of openMP is tricky on macOS, it is used by cloudComPy and probably also by open3d and I guess it works because conda provides a consistent configuration for both packages.
Best regards,
Paul