Flash Error w/ Custom JSON

Thanks for the quick response

I’m not sure it is the board.json as I didn’t make any changes since the previous flashes, which exported successfully. Just double checked with the the basic customseed.json example given by Takumi here and getting the same error

Attaching a screenshot of the patch for you below

What are these cache files the compiler is failing to reference from /Library/Caches/plugdata/ ?

Is there anyway I can add them in manually?