Gradle DSL method not found: 'main()'

Question

syncing Gradle it gives the following error Error:(24, 0) Gradle DSL method not found: 'main()' Possible causes:

The project 'OcrAgainNew' may be using a version of Gradle that does not contain the method. Open Gradle wrapper file

The build file may be missing a Gradle plugin. Apply Gradle plugin

"gradle.build"

buildscript {
repositories {
    mavenCentral()
}
dependencies {
    classpath 'com.android.tools.build:gradle:2.1.0'
   }
}

apply plugin: 'com.android.library'

android {
compileSdkVersion 23
buildToolsVersion "21.1.2"
defaultConfig {
    minSdkVersion 15
    targetSdkVersion 23
   }
}

sourceSets.main {
    manifest.srcFile 'AndroidManifest.xml'
    java.srcDirs = ['src']
    resources.srcDirs = ['src']
    res.srcDirs = ['res']
    jniLibs.srcDirs = ['libs']
}

screenshot of my project

Answer 1

If you are using version 0.14.0 or higher of the gradle plugin, you should replace runProguard with minifyEnabled in your build.gradle files.

Answer 2

You have to define the sourceSets block inside the android block

android {
   compileSdkVersion 23
   buildToolsVersion "21.1.2"
   defaultConfig {
       minSdkVersion 15
       targetSdkVersion 23
   }

   sourceSets.main {
      manifest.srcFile 'AndroidManifest.xml'
      java.srcDirs = ['src']
      resources.srcDirs = ['src']
      res.srcDirs = ['res']
      jniLibs.srcDirs = ['libs']
   }
}