,i had to completely install bb 2.2.5 due to libpng error,but while exporting for android this error is coming out,please help as I Need to update my apk asap
I suppose you already got your solution. But when first opening Buildbox the modules get downloaded. Depending on your internet connection it takes a minute or two. After that you will be able to export. That's normal behavior and there's a info bar at the bottom right to see if it's already finished or not.