Android App could not be saved on Google Play Console

I have tried to unpublished my app from google play store, but found some error:

The application could not be saved. Please check the form for errors.

Solution: Have some form error on google play console. Fill i the form and save,

then try to click unpublish again.

Error: use facebook ADdv

Android Studio- Error : Gradle project sync failed

First time using Android studio, but facing some problem when want RUN the project.

Error: Gradle project sync failed.









Solution:
Open the view message error and click the error link to fix the issues.

Solved!!

Android Studio - Error:SDK location not found

Imported Android project from eclipse environment to Android studio, then have problem. How to Solved?

Issues: Error:SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.

Solution:
1. Search into your project folder location (Example D: AndroidDev>2016>MyApp, and copy <local.properties>.
2. Then paste this file < local.properties> on D: AndroidDev>2016.
3. On your Android Studio Panel, Build > Clean Project.

DONE !!!