ERROR: Invalid device ID found in the manifest:

Hi,

I built a project under 3.0.10 with 'Future Bike Computer' and 'Future Wearable Device' (sorry can't remember exact wording) checked in the manifest.  Anyway, when I try and build under 3.0.11 I get

BUILD: ERROR: Invalid device ID found in the manifest: bikecomputer2019
BUILD: ERROR: Invalid device ID found in the manifest: wearable2019
BUILD: ERROR: Invalid device ID found.

As the options are now missing.  How do I resolve?  Do I need to edit the manifest by hand to remove them?

Thanks

Chris