no development nor production certificate identified on development portal
HOWEVER, I literally just archived and uploaded successfully two builds to Itunesconnect using Xcode locally, and I’ve tried twice deleting all uploaded certificates on Bitrise and reuploading them.
You should generate the appropriate ipa locally, that will create the profiles on the apple developer portal, then use the code sign script we have up on the code signing tab, that will download them for you.