Traceback (most recent call last):


 "/Users/denizgungor/Library/Application Support/Anki2/addons21/review_heatmap/libaddon/gui/basic/dialog_basic.py", line 93, in accept

self._onAccept()


 "/Users/denizgungor/Library/Application Support/Anki2/addons21/review_heatmap/libaddon/gui/dialog_options.py", line 130, in _onAccept

self.config.save()


 "/Users/denizgungor/Library/Application Support/Anki2/addons21/review_heatmap/libaddon/anki/configmanager.py", line 216, in save

saver(self._config[name])


 "/Users/denizgungor/Library/Application Support/Anki2/addons21/review_heatmap/libaddon/anki/configmanager.py", line 457, in _saveSynced

self._getStorageObj("synced")[self._conf_key] = config


 "anki/config.py", line 64, in __setitem__


 "anki/config.py", line 40, in set
orjson.JSONEncodeError: Type is not JSON serializable: WrappedDict

Traceback (most recent call last):


 "/home/user/venv/lib/python3.7/site-packages/dvc/command/metrics.py", line 49, in run

recursive=self.args.recursive,


 "/home/user/venv/lib/python3.7/site-packages/dvc/repo/metrics/__init__.py", line 8, in show

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


 "/home/user/venv/lib/python3.7/site-packages/dvc/repo/__init__.py", line 34, in wrapper

ret = f(repo, *args, **kwargs)


 "/home/user/venv/lib/python3.7/site-packages/dvc/repo/metrics/show.py", line 105, in show

raise NoMetricsError()
dvc.exceptions.NoMetricsError: no metric files in this repository. Use `-m/-M` options for `dvc run` to mark stage outputs as
metrics.
