Error when execute pmg analyze

Python version: 3.7.3
OS version: macOS Mojave
monty 1.12.0

I installed the pymatgen through Conda-based install and in developmental mode as well.

When I was trying the execute “pmg analyze .” in a vasp calculaiton fold.

The following error message appears:

File “/Users/lvjian/miniconda3/lib/python3.7/site-packages/monty/”, line 271, in default
d = o.as_dict()
AttributeError: ‘property’ object has no attribute ‘as_dict’

File “/Users/lvjian/miniconda3/lib/python3.7/multiprocessing/”, line 268, in map
return self._map_async(func, iterable, mapstar, chunksize).get()
File “/Users/lvjian/miniconda3/lib/python3.7/multiprocessing/”, line 657, in get
raise self._value
TypeError: Object of type property is not JSON serializable

Could any help me to solve this problem?

Try to remove the vasp_data.gz file in your working folder (if it exists). Might work.
Or try “pmg analyze -r”