First you have to tell us if you compile with Intel XDK ( Crosswalk ), CocoonJS, ...
. If you compile with CocoonJS have to sign and align, there are very good tutorials - remember that there are problems with jdk 7 and for some reason compiles but when uploading to Google Play does not work -
. If you compile with Intel XDK ( Crosswalk ) will have to sign in with Google Play keys.