Gradle Project Sync Failed, Kotlin

Question

I am using a beta Kotlin and Android-Studio channel. After update to the latest version i got some gradle sync error.

Below are the log i copied from Event Log:

Error:Could not find org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.0-rc-39.
Searched in the following locations:
    file:/home/yourpc/Android/android/gradle/m2repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
    file:/home/yourpc/Android/android/gradle/m2repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
    https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
    https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
    https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
    https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
Required by:
    project :

below is the build.gradle

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

buildscript {
    ext.kotlin_version = '1.2.0-rc-39'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.0-alpha04'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

below is the app build.gradle:

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.udebest.myapplication"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            postprocessing {
                removeUnusedCode false
                removeUnusedResources false
                obfuscate false
                optimizeCode false
                proguardFile 'proguard-rules.pro'
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

Please, anyone has an idea about this? I don't really know how can I solve this? I could not find any solutions out there.

user_8711684 · Answer

Change your repositories in buildscript and allprojects into:

{
    google()
    jcenter()
    mavenCentral()
    maven {
        url 'https://dl.bintray.com/kotlin/kotlin-dev/'
    }
}

This works for me.

user_8109872 · Answer

Change and try

classpath 'com.android.tools.build:gradle:3.1.0-alpha04'

to

classpath 'com.android.tools.build:gradle:3.0.0'

It may be due to the alpha release of gradle.

user_6034519 · Answer

Use below version of kotlin in build.gradle(Project)

kotlin_version = '1.1.4-3'
dependencies {
    classpath 'com.android.tools.build:gradle:3.0.0'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}

Declare dependency of kotlin in build.gradle(Module) as below

compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

user_8226352 · Answer

check your Kotlin version in build.gradle. I got the same issue when the version was 1.1.0 which was added by default. changed to recent version 1.3.21 then it is working fine.

user_14036914 · Answer

This solution has worked for me for React Native(0.63) after installing react-native-image-picker by Ray Eldath, from above comment

//in android.build.gradle

{
    google()
    jcenter()
    mavenCentral()
    maven {
             url 'https://dl.bintray.com/kotlin/kotlin- 
    dev/'
    }
}

user_12539140 · Answer

First, close Android studio, delete the .gradle folder, and then open Android Studio again, probably as an administrator This will make it sync from the start, and solve the issue.

This issue was resolved for one of my peers.

user_5400914 · Answer

Uninstall the Kotlin plugin (Preferences > Plugins > Kotlin > Uninstall) and use the version that comes with the IDE .

Gradle Project Sync Failed, Kotlin

8 Answers