Compiling error

hi all, I deleted a Screen2 but an error appears during compiling

[CreateManifest] Starting Task
[CreateManifest] INFO: Reading project specs...
[CreateManifest] VCode: 1
[CreateManifest] VName: 1.0
[CreateManifest] Min SDK 14
[CreateManifest] INFO: Writing screen 'appinventor.ai_test.test.Screen2'
[CreateManifest] Task errored

and if I try recreate screen2 a red popup tell me that it is impossible
can someone help me?
thank you

Problem with lastopenscreen (know bug)

Reaolve it by downloading aia, ooen with zip, change into someother screen name(available ) and reupload the aia. And compile again