Android Studio 3.0 - Unable to find method 'com.android.build.gradle.internal.variant.BaseVariantData.getOutputs()Ljava/util/List'

Trying to start a new Kotlin project with Android Studio 3.0 Canary 1 displays this error. Full trace:

> Error:Unable to find method > 'com.android.build.gradle.internal.variant.BaseVariantData.getOutputs()Ljava/util/List;'. > Possible causes for this unexpected error include:

• Gradle's > dependency cache may be corrupt (this sometimes occurs after a network > connection timeout.) Re-download dependencies > and sync project (requires network)
• The state of a Gradle > build process (daemon) may be corrupt. Stopping all Gradle daemons may > solve this problem. Stop Gradle build > processes (requires restart)
• Your project may be using a > third-party plugin which is not compatible with the other plugins in > the project or the version of Gradle requested by the > project.

In the case of corrupt Gradle processes, you can > also try closing the IDE and then killing all Java processes.

I've tried the first two options and the third-party plugins are left as default.

gradle-wrapper.properties

#Thu May 18 08:36:52 BST 2017
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-milestone-1-all.zip

build.gradle

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

buildscript {
    ext.kotlin_version = '1.1.2-3'
    repositories {
        maven { url 'https://maven.google.com' }
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
        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 {
        jcenter()
        maven { url 'https://maven.google.com' }
        mavenCentral()
    }
}

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

I haven't touched any of these values myself, they're left as default. Creating a non-Kotlin new project does not have this problem.

In my build.gradle changing

ext.kotlin_version = '1.1.2-3'

to

ext.kotlin_version = '1.1.2-4'

fixed this.

You can find the most recent version here.

It worked for me

Using the 8.4.0 version

 classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0'  

For Java

Just remove

>classpath 'me.tatarka:gradle-retrolambda:3.7.0'

downgrade butterknife version to 8.4.0

>classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0'

Don't forget to remove

apply plugin: 'me.tatarka.retrolambda'

from app level build gradle.

This is a known issue in Android Studio Preview 3.0:

> If you see this error, it's possible you have a pre-existing version of the Kotlin plugin that is incompatible with the new Android Plugin for Gradle that's in Android Studio 3.0. The solution is to delete the old Kotlin plugin. > > Open your project-level build.gradle file and locate ext.kotlin_version. It should be 1.1.2-4 (or higher). If it shows an older version, you need to delete the old Kotlin plugin so it does not obstruct the version included with Android Studio 3.0. > > On Windows, it should be located at > > C:\Users\user_name\AndroidStudio_version\config\plugins\Kotlin\ > > On Mac, look in > >~/Library/Application\ Support/AndroidStudio_version/Kotlin/

In my case, the issue was caused because we were applying butterknife-gradle-plugin. Upgrading to 8.8.1 didn't fix the issue, but removing it certainly did.

The build.gradle belongs to the application, so I don't even know why we are using that plugin (I'm new to the project)

Update your kotlin version to the latest:

ext.kotlin_version = '1.1.2-4' //currently it's the latest version

Then you may face some more errors, so before syncing again, make sure that your buildToolsVersion is "26.0.2" or higher.