Why my project not building?

When I press the “Build” button, I’m getting an error “The password for the alias was not valid, or the Java SDK was not found”

I will be very grateful for your help

The required Java SDK is already included with the Solar2D installation package.

Assuming you’re using the default Key alias androiddebugkey, the password should be android.

If you’re still getting the error then it could also be related to trying to build from a machine that has no access to the internet.