I added a jpg file and it works. Then I added a zip file or an apk file and it got stuck.
I added another jpg or png - it works.
Removed all code and libraries - still the same.
I tried adding small files - still the same.
I'll continue checking.
edit: took a perfect app that ran like charm a minute ago, added an apk file of 251 k and it gets the error.
Debug or release - the same.
Android.jar 16 or 21 - the same.
Re-installed b4a 3.82 - the same.
Add txt file - ok. exe - no. doc - no.
wav - ok, xls - ok !
htm - ok.
xml - no.
ini - ok.
ico , dat - no.