TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

[thippo]

(base) [root@ai_test src]# python main.py --prot-file chig.pdb --preprocess-dir chig_preprocessed --preeq-steps 0 --sim-steps 1000 --record-per-steps 1
Traceback (most recent call last):
File "/root/AI2BMD/src/main.py", line 10, in
from AIMD.simulator import SolventSimulator, NoSolventSimulator
File "/root/AI2BMD/src/AIMD/simulator.py", line 19, in
from Calculators.fragment import FragmentCalculator
File "/root/AI2BMD/src/Calculators/fragment.py", line 4, in
from Calculators.bonded import DLBondedCalculator
File "/root/AI2BMD/src/Calculators/bonded.py", line 15, in
from Fragmentation import DistanceFragment
File "/root/AI2BMD/src/Fragmentation/init.py", line 1, in
from .distancefrag import DistanceFragment
File "/root/AI2BMD/src/Fragmentation/distancefrag.py", line 17, in
from Fragmentation.hydrogen import CTable, HydrogenOptimizer, ProteinData, ProteinDataBatch
File "/root/AI2BMD/src/Fragmentation/hydrogen/init.py", line 2, in
from .energies import HydrogenOptimizer
File "/root/AI2BMD/src/Fragmentation/hydrogen/energies.py", line 5, in
from Fragmentation.hydrogen.topology import ProteinData
File "/root/AI2BMD/src/Fragmentation/hydrogen/topology.py", line 133, in
class ProteinDataBatch(Batch, ProteinData):
TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

Is there same thing wrong with python code about subclass？

[bi-ran]

how are you running the code? we cannot reproduce this error in the docker container we provide

[thippo]

how are you running the code? we cannot reproduce this error in the docker container we provide

Yes, It work in the docker container.

But when I run the src code, this error happend, because I want to do some secondary development.

[bi-ran]

you can pass --src-dir /path/to/local/src/directory/ to the script to mount your local src directory with your changes. the error is likely due to incompatible package versions