Build app hang at 100% wich is waiting for the barcode

Welcome,

Android or iOS, aia size?

android. aia size 30.4mb

The size limit is 30MB, remove 1-2 files from the assets or shrink/compress some media files (mp3, jpg, png,...) and try again.

or use the https://code.appinventor.mit.edu/ server

Its work. But now i cant download, idk why the download link is doesn't work, its say " ai2.appinventor.mit.edu currently unable to handle this request.", I've tried so many time. Its my school project btw. Thank you

Post a screenshot.

Did you try to download to your computer?
grafik

I scan the barcode after i build, and this happen

I try to download to my computer and my phone

And if this also fails, remove some more files from the assets and try again.

Ok i get it. Thank you so much for your help.