Error while running Lesson 8 Cadet Match

Ok, I think I found the issue. If you look at the error message, it says:

----> 6     json.dump(match_config.to_dict(), json_file, indent='\t')
[...]
TypeError: Object of type PosixPath is not JSON serializable

So what I did next was to check the contents of match_config. This is the output when i print it:

{'CADETPath': PosixPath('/opt/tljh/user/bin/cadet-cli'),
 'baseDir': '/home/jupyter-j.schmoelder/cadet-tutorial/08_CADET-Match_Introduction',
 'resultsDir': 'results',
 'parameters': [{'location': '/input/model/unit_001/COL_DISPERSION',
   'min': 1e-10,
   'max': 1e-06,
   'component': -1,
   'bound': -1,
   'transform': 'null'},
  {'location': '/input/model/unit_001/COL_POROSITY',
   'min': 0.2,
   'max': 0.7,
   'component': -1,
   'bound': -1,
   'transform': 'null'}],
 'experiments': [{'name': 'dextran',
   'csv': '../resources/dextran_experiment.csv',
   'HDF5': 'dextran_reference.h5',
   'output_path': '/output/solution/unit_002/SOLUTION_OUTLET_COMP_000',
   'features': [{'name': 'Pulse', 'type': 'SSE'}]}],
 'searchMethod': 'NSGA3',
 'population': 12,
 'stallGenerations': 10,
 'finalGradRefinement': True,
 'gradVector': True}

Here you can see that actually, the cadet path seems to be the culprit. If you convert it to a proper path, it runs:

match_config.CADETPath = Cadet.cadet_path.as_posix()

Once again, sorry it took so long!