"Some Kotlin libraries attached to this project have unsupported format.Please update the libraries or the plugin"

Question

I have installed the kotlin plugin into my android studio project.The code complies with out an issue. It also executes when I call it from a java class. It is giving me the warning "Some Kotlin libraries attached to this project have unsupported format.Please update the libraries or the plugin". The println() function is also not being recognized in the IDE.

test.kt

fun foo(){
    println("ad")
}



public class iTar{
   public fun printAll( vararg a: String ){
        for(item in a)println(item)
    }
}

Build.Gradle

buildscript 
{
    ext.kotlin_version = '0.8.679'
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }


}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'

android {
    compileSdkVersion 20
    buildToolsVersion "20.0.0"
    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    packagingOptions {
        exclude 'META-INF/LGPL2.1'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/NOTICE'
    }

    defaultConfig {
        applicationId "xxxxx"
        minSdkVersion 14
        targetSdkVersion 20
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }


}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'org.codehaus.jackson:jackson-mapper-lgpl:1.9.13'
    compile 'com.j256.ormlite:ormlite-android:4.48'
    compile 'org.mapsforge:svg-android:0.4.3'
    compile 'com.android.support:support-v4:20.+'
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}

repositories {
    mavenCentral()
}

Answer 1

Your problem comes from using Kotlin 0.8.679 in your Gradle build, which is too new for the Kotlin plugin you are using in the IDE. Two possible solutions:

• update your plugin to a newer nightly build, or
• use 0.8.11 in your Gradle build