Packaging done in 4.9, but not in 4.10

Hi! I am trying to pack my Android game. I did it in 4.9 version, and it was ok, but then when I opened the same file with the new version (making a copy and changing the name of the main file) and I tried to pack the game again, it was unable.
I am interested in the new web browser for the 4.10, so this is the reason to change versions.

Thank you.