pants --print-stacktrace validate
16:42:28.78 [ERROR] Exception caught: (pants.engine.internals.scheduler.ExecutionError)
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/bin/local_pants_runner.py", line 236, in _run_inner
    return self._perform_run(goals)
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/bin/local_pants_runner.py", line 175, in _perform_run
    return self._perform_run_body(goals, poll=False)
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/bin/local_pants_runner.py", line 192, in _perform_run_body
    return self.graph_session.run_goal_rules(
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/init/engine_initializer.py", line 135, in run_goal_rules
    exit_code = self.scheduler_session.run_goal_rule(
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/engine/internals/scheduler.py", line 538, in run_goal_rule
    self._raise_on_error([t for _, t in throws])
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/engine/internals/scheduler.py", line 497, in _raise_on_error
    raise ExecutionError(

Exception message: 1 Exception encountered:

Engine traceback:
  in select
  in pants.backend.project_info.source_file_validator.validate
Traceback (most recent call last):
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/engine/internals/selectors.py", line 695, in native_engine_generator_send
    res = func.send(arg)
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/backend/project_info/source_file_validator.py", line 287, in validate
    multi_matcher = source_file_validation.get_multi_matcher()
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/util/memo.py", line 123, in memoize
    result = func(*args, **kwargs)
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/backend/project_info/source_file_validator.py", line 137, in get_multi_matcher
    return MultiMatcher(ValidationConfig.from_dict(self.options.config))
  File "/Users/ryan.king/.cache/pants/setup/bootstrap-Darwin-x86_64/2.7.0_py39/lib/python3.9/site-packages/pants/backend/project_info/source_file_validator.py", line 87, in from_dict
    path_patterns=tuple(PathPattern(**kwargs) for kwargs in d["path_patterns"]),
KeyError: 'path_patterns'



(Use --print-stacktrace for more error details and/or --no-process-execution-local-cleanup to inspect chroots and/or -ldebug for more logs. See <https://www.pantsbuild.org/v2.7/docs/troubleshooting> for common issues. Consider reaching out for help: <https://www.pantsbuild.org/v2.7/docs/getting-help.>)