Application Loader: “Cannot proceed with delivery: an existing transporter instance is currently uploading this package”

Question

I have been unable to overcome this error in Application Loader. I\'ve quit, restarted, tried different computers - it\'s like the server is hung up on an op that I never i

Answer 1

token was in here

/Users/(user_name)/Library/Caches/com.apple.amp.itmstransporter/UploadTokens/