Hi,
I have trying anything both of you have suggested. Even changing the device. The error still present.
Back to the 6.50 for this project, and i will use the 9.50 for the next one.
There is never a good reason to use an old version of B4A. Specifically not v6.50.
1. Post the full error message.
2. Open the APK with 7zip or a similar tool and check whether the file is there.
3. Make sure that the file case in the APK is lower cased.