Traceback (most recent call last):
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/execution/executionscript.py", line 89, in execute_job
    job.execute()
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/execution/job.py", line 826, in execute
    if not self.validate_results(payload):
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/execution/job.py", line 1094, in validate_results
    if not self._validate_result(output, output_value, payload):
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/execution/job.py", line 1144, in _validate_result
    if not value.valid:
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/datatypes/__init__.py", line 640, in valid
    return super(URLType, self).valid
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/datatypes/__init__.py", line 250, in valid
    return self._validate()
  File "/home/martijn/Documents/WORC3/lib/python3.7/site-packages/fastr/resources/datatypes/JsonFile.py", line 27, in _validate
    with open(self.parsed_value) as fh_in:
FileNotFoundError: [Errno 2] No such file or directory: '/home/martijn/git/WORC/WORC/tests/WORC_Example_STWStrategyHN_Multiclass/plot_Estimator/all/output_json_0.json'
