KeyError: ''

[ines (Ines Montani)]

Hi! It looks like you're running into this problem, which is related to uvicorn, one of Prodigy's dependencies:

Getting KeyError '' when launching prodigy

Hi! It seems like a new version of uvicorn (the library that Prodigy uses for to serve the app) introduced a backwards-incompatible change. We'll release a new Prodigy version with the required change soon, but in the meantime, downgrading uvicorn should fix it:

Downgrading uvicorn as described should help. Alternatively, upgrading Prodigy will also fix this because it won't include this line anymore.