if you have a backup project .aia, you can just import it and see if works.
I hope you have missed to add the extension used in the ais first into your project.
It is mandatory to add the extensions used in the ais into the project before your upload the ais, then upload the ais, your errors will be throwed away
I have already checked this
There are no missing of any aix
If you wish post your ais here so someone may check it
Here is aia of app
BookApp.aia.zip (4.3 MB)
In all of you r imported screens, this expression is missing. You have us wrong info.
Import this extension.
This is aia without the imported screens that caused errors. If you wish post your ais here to see what was the problem in importing it
BookApp6.aia (4.3 MB)
Here is aia
Which imported screen gives error ? Or you want all imported screens removed ?
Deleted all imported screens
Pdfbook_listview.aia (4.4 MB)
This screen giving errors
Ok deleted only that
Pdfbook_listview_1.aia (4.5 MB)
to fix what you did with aia