Not sure this is the right place to raise this 🤷🏻 or where a misconfiguration might be causing it.
It seems that WatcherAdapter will throw this error when starting an (ember-cli) development or test server under these specific circumstances:
- when the ember-data package is installed (4.12 and 5.0)
- when the project directory contains the string
ember-data
There's a reproduction using ember-cli in warp-drive-data/warp-drive/issues/8606