Error:Plugin with id 'com.android.application' not found.

Possible reason: your project has only one build.gradle

Solution steps:

1. Add in build.gradle

buildscript {
    repositories {
        jcenter ()
        maven {
            url "https://maven.google.com"
        }

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}

2. Download and use the support package jar and put it in the libs folder of the project

dependencies {

    compile files ('libs/android-support-v4.jar')

}