GooglePlusUtil cannot be resolved (Android)

I wish this helpful for you Do not use android.R but your own R class (which is automatically generated in the gen folder and contains the constants for your resources. In Eclipse, pressing Strg+Shift+O should organize your imports correctly.

With these it helps I have managed to add almost all the required dependencies and now i got an almost-running version. Kindly, check it out from here
You can also check the last commit, it contains all what i did to get this running version.

Does that help You may want to review the steps this link. It goes through the steps of adding it to your Android project, regardless of your IDE. Eclipse will work just fine.
These steps take some time and effort, but I have successfully done this before.

hop of those help? This solution may, first and foremost, demonastrate how green I am with Android programming but I believe I found the solution.
Initially following the Android Developer Tutorial, I downloaded the latest versions - 18, 19, 20, etc. When I was creating the project, however, I was specifying much early versions for compatibility; all the way down to 7 or 8. I looked into this because I remembered seeing a message from the IDE regarding the Action Bar and how some commands weren't supported on Version X.

Hope that helps As I see you've problem in your LibGDX project (From your attached build.gradle file)