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> I have the same problem, too. How did you solve it? I tried to start from a clean conda environment and it magically fixed...
Hello, The error message seems related with c++ version you are using. What is your gcc/g++ version? Could you try follow the error message and add `-std=c++11` to the compiling?
Have you moved the binary file pyDBoW3.pyd to your workspace folder?
Can you remove the try catch segment in enable_loop_closure function, and let python print out the exact error message?
Great to hear you having the system without loop closure running now. Could you try to remove the try..except surround `import pyDBoW3 as bow` in the `enable_loop_closure` function in `voldor_slam.py`?...
> hello，I have the same error I remove the try catch segment in enable_loop_closure function > > ImportError: /home/VOLDOR/demo/pyDBoW3.so: undefined symbol: _ZN2cv3MatC2Ev > > Looking forward to your response Thanks...
Thanks for reporting the issue. Ceres 2.0 should work. I will try to update that part when there is a chance.
Thanks for your kind words. The problem with your VO compling seems related to opencv. Did you install it from apt? Can you try using opencv 3.4.X follow the README?
Can you run VO-only now?
Your current issue seems similar to this guy. [https://github.com/htkseason/VOLDOR/issues/17#issuecomment-1121961868](https://github.com/htkseason/VOLDOR/issues/17#issuecomment-1121961868) Could you please try add `-l cusolver -l cublas` to `slam_py/install/setup_linux_full.py` line 16. If it does not work, maybe add `cusolver`,...