Libgdx Tween Not Working On Android

I'm developing my first android game with libgdx, using as a base this amazing tutorial (http://www.kilobolt.com/day-11-supporting-iosandroid--splashscreen-menus-and-tweening.html)

Solution 1:

You need to make sure you export the tween jar files in your Build Path. For Eclipse, you can Right-click on the project, choose "Build Path" > "Configure Build Path", go to the "Order and Export" tab on the right side, and make sure that the tween jar files are checked in the list there.