After upgrading to 0.5.5 from 0.5.4 I got this error when trying to access the canister frontend from a project I created with the former version and wanted to update. I already deleted .dfx/state in the project direcotry and reinstalled dfx.
Additionally the local replica threw the following error:
Apr 05 23:02:29.381 WARN Could not perform query on canister: IC0301: Canister ic:B5008CEB5C40C41D42 not found, Application: Http Handler
Thanks to our beautiful support the following solution emerged: