Error:(1, 0) Plugin with id 'com.android.application' not found

just add the following code to your top level build.gradle 

{note by top level build.gradle i means that if you open that build.gradle you will see a comment like this

// Top-level build file where you can add configuration options common to all sub-projects/modules.

add the following code 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.+'
        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }
}

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

and click on sync now ..it will do the rest..