Hi, I'm facing the same issue with same command. Below the command: xcrun altool --validate-app \ --f app.ipa \ --t ios \ --apiKey $APP_STORE_CONNECT_KEY_IDENTIFIER \ --apiIssuer $APP_STORE_CONNECT_ISSUER_ID \ --verbose \ and the error recieved: *** Error: Server returned an invalid MIME type: text/html, body: Something went wrong here! Correlation Key: XXXXXXXXXXXXXXXXX