Android Jack: Lambda coming from jar file need their interfaces on the classpath to be compiled, unknown interfaces are java.util.function.Consumer

Question

Getting this on android studio 2.2.

Does anyone have a workaround?

My app build file is:

apply plugin: \'com.android.application\'

android {         


        

Answer 1

I had this problem after adding Guava library to my dependencies.

Solution was to downgrade lib version from com.google.guava:guava:21.0 to com.google.guava:guava:20.0.

Also, I'm using classpath 'com.android.tools.build:gradle:2.5.0-alpha-preview-01`

EDIT: As you don't use this library please try to change:

• in project build.gradle
  • classpath from classpath 'com.android.tools.build:gradle:2.2.0' to com.android.tools.build:gradle:2.5.0-alpha-preview-01

• in app build.gradle

  • from compileSdkVersion 24 to 25
  • from buildToolsVersion "24.0.2"to 25.0.2

• in gradle-wrapper.properties

  • change version to distributionUrl=https://services.gradle.org/distributions-snapshots/gradle-3.5-20170213202653+0000-all.zip

Answer 2

upgrading android studio, the following seems to work (but it's really slow now):

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.0"

    defaultConfig {
        applicationId "acme.cb2"
        minSdkVersion 22
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        jackOptions {
            enabled true
       }
    }
    dexOptions {
        //javaMaxHeapSize "4G"
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:25.2.0'
    compile 'com.android.support:support-v4:25.2.0'
}

Answer 3

add this in your build.gradle:

allprojects {
    repositories {
        jcenter()
    }
    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xbootclasspath/a:" + System.properties.get("java.home") + "/lib/rt.jar"
        }
    }
}

Answer 4

Try

classpath 'com.android.tools.build:gradle:2.3.+'

and

minSdkVersion 25