Traceback (most recent call last):


 "/Users/davydden/spack/bin/spack", line 48, in <module>

sys.exit(spack.main.main())


 "/Users/davydden/spack/lib/spack/spack/main.py", line 669, in main

return _invoke_command(command, parser, args, unknown)


 "/Users/davydden/spack/lib/spack/spack/main.py", line 440, in _invoke_command

return_val = command(parser, args)


 "/Users/davydden/spack/lib/spack/spack/cmd/env.py", line 364, in env

action(args)


 "/Users/davydden/spack/lib/spack/spack/cmd/env.py", line 257, in env_list

names = ev.all_environment_names()


 "/Users/davydden/spack/lib/spack/spack/environment.py", line 291, in all_environment_names

yaml_path = os.path.join(root(candidate), manifest_name)


 "/Users/davydden/spack/lib/spack/spack/environment.py", line 237, in root

validate_env_name(name)


 "/Users/davydden/spack/lib/spack/spack/environment.py", line 82, in validate_env_name

"letters, numbers, _, and -.") % name)
ValueError: '.DS_Store': names must start with a letter, and only contain letters, numbers, _, and -.

Traceback (most recent call last):


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/main.py", line 90, in main

ret = cmd.run()


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/command/params.py", line 38, in run

all=self.args.all,


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/repo/params/__init__.py", line 13, in diff

return diff(self.repo, *args, **kwargs)


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/repo/params/diff.py", line 25, in diff

format_dict(old), format_dict(new), with_unchanged=with_unchanged


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/utils/diff.py", line 82, in diff

path_diff = _diff(old.get(path), new.get(path), with_unchanged)


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/utils/diff.py", line 67, in _diff

return _diff_dicts(old, new, with_unchanged)


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/utils/diff.py", line 46, in _diff_dicts

new = _flatten(new_dict)


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/utils/diff.py", line 40, in _flatten

return defaultdict(lambda: None, flatten(d))


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/dvc/utils/flatten.py", line 5, in flatten

return flatten_dict.flatten(d, reducer="dot")


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/flatten_dict/flatten_dict.py", line 91, in flatten

_flatten(d)


 "/Users/bharathc/miniconda3/envs/dev/lib/python3.7/site-packages/flatten_dict/flatten_dict.py", line 88, in _flatten

raise ValueError("duplicated key '{}'".format(flat_key))
ValueError: duplicated key 'training.alpha'
