Violation occurred on line 601 in file /usr/local/miniconda/conda-bld/rdkit_1578668905594/work/Code/GraphMol/ROMol.cpp Failed Expression: conf->getNumAtoms() == this->getNumAtoms()

#1

Hi All I am trying to run simulation on QM8 molecular dataset but I get this error below. Other dataset such as ESOL and QM9 work without any problem but not sure why I am getting this error for QM8. The error is shown below:

[13:39:25] Depickling from a version number (13.0)that is higher than our version (10.1).
This probably won't work.
[13:39:25] 

****
Pre-condition Violation
Number of atom mismatch
Violation occurred on line 601 in file /usr/local/miniconda/conda-bld/rdkit_1578668905594/work/Code/GraphMol/ROMol.cpp
Failed Expression: conf->getNumAtoms() == this->getNumAtoms()
****

Traceback (most recent call last):
  File "/Users/main.py", line 165, in <module>
    main(args)
  File "/Users/main.py", line 33, in main
    data.load(args.mol_data_dir)
  File "/Users/molecular_dataset.py", line 13, in load
    self.__dict__.update(pickle.load(f))
RuntimeError: Pre-condition Violation
        Number of atom mismatch
        Violation occurred on line 601 in file Code/GraphMol/ROMol.cpp
        Failed Expression: conf->getNumAtoms() == this->getNumAtoms()
        RDKIT: 2019.09.3
        BOOST: 1_70
#2

Could you provide us a minimum failing code snippet? Is this error coming when you use a DeepChem featurizer or is this an error in RDKit?