No module named 'simtk.openmm.app.internal'

[LoveFishoO]

Change the simtk.openmm to openmm Because new version openmm can not use simtk

[LoveFishoO]

The previous comment may not specific enough. Therefore, now I am going to specific about how to solve this problem, if we use OpenMM==7.7.0.

alphafold/alphafold/relax/utils.py

import io
from alphafold.common import residue_constants
from Bio import PDB
import numpy as np
from simtk.openmm import app as openmm_app  -->  from openmm import app as openmm_app
from simtk.openmm.app.internal.pdbstructure import PdbStructure  -->  from openmm.app.internal.pdbstructure import PdbStructure

alphafold/alphafold/relax/amber_minimize.py

import io
import time
from typing import Collection, Optional, Sequence

from absl import logging
from alphafold.common import protein
from alphafold.common import residue_constants
from alphafold.model import folding
from alphafold.relax import cleanup
from alphafold.relax import utils
import ml_collections
import numpy as np
from simtk import openmm  -->  import openmm
from simtk import unit  -->  from openmm import unit
from simtk.openmm import app as openmm_app  -->  from openmm import app as openmm_app
from simtk.openmm.app.internal.pdbstructure import PdbStructure  -->  from openmm.app.internal.pdbstructure import PdbStructure

[Augustin-Zidek]

Fixed in https://github.com/google-deepmind/alphafold/commit/955737f12cc4b27398fe2369417fc2cc79815eb6