Your project requires a newer version of the Kotlin Gradle plugin. (Android Studio)

Question

I've just updated my flutter project packages to be null-safety compliant and now Android Studio wants me to update my project to use the latest version of Kotling Gradle Plugin. Can't see where to change this though. I have tried to change "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" into "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10" but this has no effect.

My build.grade-file looks like this:

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
    compileSdkVersion 31

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "*********"
        minSdkVersion 30
        targetSdkVersion 30
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }



    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }

}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
    implementation 'com.google.firebase:firebase-analytics:17.2.2'
}
apply plugin: 'com.google.gms.google-services'

Build output:

BUILD FAILED in 8s
[!] Your project requires a newer version of the Kotlin Gradle plugin.
    Find the latest version on https://kotlinlang.org/docs/gradle.html#plugin-and-versions, then update project/android/build.gradle:
    ext.kotlin_version = '<latest-version>'
Exception: Gradle task assembleDebug failed with exit code 1

score 219 · Accepted Answer · edited Jun 20 '23 at 21:23

219

You need to change the kotlin version in your android root project, projectName/android/build.gradle, instead of projectName/android/app/build.gradle.

Change the version at ext.kotlin_version line:

buildscript {
    ext.kotlin_version = '1.6.10' // Change here
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

UPDATE

The above solution will also works if your android part of the project is using java where the dependencies are using kotlin and you've encountered the following error:

Incompatible classes were found in dependencies. Remove them from the classpath or use '-Xskip-metadata-version-check' to suppress errors
e: /home/user/.gradle/caches/transforms-3/36814238b86d8b6b6f9e4e1263bce879/transformed/jetified-kotlinx-coroutines-core-jvm-1.5.2.jar!/META-INF/kotlinx-coroutines-core.kotlin_module: 
Module was compiled with an incompatible version of Kotlin. 
The binary version of its metadata is 1.5.1, expected version is 1.1.15.

AndroidStudio or IntelliJ Idea will give hint in the project build.gradle file if the kotlin is not the same with the installed kotlin in the IDE.

Note: to see the new versions of Kotlin check this link : https://kotlinlang.org/docs/releases.html#release-details

edited Jun 20 '23 at 21:23

Mohammad Rabiee Nasri

1,309
2
7
26

answered Jan 30 '22 at 22:06

ישו אוהב אותך

28,609
11
78
96

7

It works, but how can I identify the kotlin_version based on sdk – Md. Yeasin Sheikh Feb 03 '22 at 08:15
1

I also changed the distributionUrl in the gradle-wrapper to 7.3.3-all.zip – novas1r1 Feb 07 '22 at 21:46
1

@YeasinSheikh: afaik, AndroidStudio or IntelliJ Idea will give warning if the kotlin in `build.grade` is not the same with the installed kotlin in the IDE. – ישו אוהב אותך Feb 08 '22 at 09:58
Thanks man. I've been on this issue for 2 days after upgrading my dart and flutter versions – Obot Ernest Feb 11 '22 at 14:18
Thanks man. I've been on this issue for 2 days after upgrading my dart and flutter versions – Obot Ernest Feb 11 '22 at 14:18
To update grade : https://stackoverflow.com/a/69053055 – fabienbranchel Feb 17 '22 at 10:30
To find out the latest version of Kotlin Gradle visit https://kotlinlang.org/docs/gradle.html#plugin-and-versions – David L Mar 10 '22 at 13:40
But I am using java in flutter and not kotlin, then why I am getting this error? – Chetan Apr 24 '22 at 11:49
@Chetan: Some of your dependencies are using kotlin, that's why you got the error. – ישו אוהב אותך Apr 24 '22 at 13:45
2

@YeasinSheikh: >Tools->Kotlin->Configure Kotling Plugin Update – cwhisperer May 25 '22 at 10:44
now there are newer versions: check here https://kotlinlang.org/docs/releases.html#release-details – Mohammad Rabiee Nasri Jun 15 '23 at 09:00

score 26 · Answer 2 · answered Mar 01 '22 at 09:20

26

Update your Kotlin to the Latest version. You can see the latest version here

ext.kotlin_version = '1.6.10' //

You can see the latest version of Kotlin from the below link https://kotlinlang.org/docs/gradle.html#plugin-and-versions

answered Mar 01 '22 at 09:20

Umer Waqas - Top rated dev

3,072
29
26

score 11 · Answer 3 · answered Feb 10 '22 at 17:24

11

I Update Flutter to 2.10.1 and I found All My Project Has Same Error in app /build.gradl you change to ext.kotlin_version = '1.6.10'

answered Feb 10 '22 at 17:24

Abdelrahman Mohamed Elakliby

279
2
7

3

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Lies Feb 10 '22 at 21:53
In Flutter Got to Andriod/gradle/build.gradle File and Updaet – Asim Khan Jun 11 '23 at 12:33

score 10 · Answer 4 · answered Jan 30 '22 at 21:52

10

change build gradle to this :

classpath 'com.android.tools.build:gradle:4.1.0'

and gradle-wrapper to this :

distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip

answered Jan 30 '22 at 21:52

Ary Anzh

406
3
15

score 7 · Answer 5 · answered Feb 07 '22 at 12:36

7

In my case, I don't use kotlin in my flutter project, but some of my dependencies use it (It was assets_audio_player for me), so I had to go to build.gradle for that dependency and update the kotlin version as other answers here:

ext.kotlin_version = '<latest-version>'

Note 1: you can open build.gradle for the library you want by opening the android module in Android Studio then go to Gradle Scripts from Project tab.

Note 2: you can know which library is causing the error by looking at:

Execution failed for task ':assets_audio_player:compileDebugKotlin'.

It could be more than one library, so after you change kotlin version the error will be changed.

answered Feb 07 '22 at 12:36

Ansshkki

760
8
14

how to solve it I updated to latest version but still getting the error – Ali Punjabi Feb 08 '22 at 13:15
@RajaEhtisham Can you write the error line as in note 2 in my answer? – Ansshkki Feb 09 '22 at 11:40
God Bless you, you saved my day, it helped me to solve this problem – Tom Apr 06 '22 at 10:33
1

I just commented `ext.kotlin_version = <>` in the libraries gradle, and automatically it will use the one I set in my app's gradle. – MBH Jan 16 '23 at 14:37

Anand · Answer 6 · 2023-01-19T09:18:25.697

You have to change the kotlin version in your android root, go to

projectName/android/build.gradle

buildscript {
    ext.kotlin_version = '1.7.0'
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

And change the gradle wrapper version to 6.7.1-all or higher in the gradle-wrapper.properties

distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip

Also you can get the lattest version here

score 4 · Answer 7 · answered May 01 '22 at 14:19

Change the build gradle version to 4.1.0 or higher in the project-level build.gradle file:
```
classpath 'com.android.tools.build:gradle:4.1.0'
```
Change the gradle wrapper version to 6.7-all or higher in the gradle-wrapper.properties file:
```
distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
```

Change the ext.kotlin_version to 1.6.10 or higher in the project level build.gradle file:

buildscript {
  ext.kotlin_version = '1.6.10' // Change like this
  repositories {
      google()
      jcenter()
  }

  dependencies {
      classpath 'com.android.tools.build:gradle:4.1.0'
      classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
  }
}

score 4 · Answer 8 · answered Jun 06 '22 at 13:28

4

1- First change ext.kotlin_version on projectName/android/build.gradle

buildscript {
    ext.kotlin_version = '1.6.10'
}

2- Second change build gradle to this :

distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip

answered Jun 06 '22 at 13:28

Adel

5,341
2
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score 4 · Answer 9 · answered May 15 '23 at 09:36

4

change kotlin version to ext.kotlin_version = '1.8.21' inside android/build.gradle , it fixes your problem.

check all versions here Find Latest Kotlin Version

answered May 15 '23 at 09:36

saigopi.me

14,011
2
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I created a new Flutter 3.10 project. It had the Kotlin version as `1.7.10`. So that's what I went with. – Karsten Silz May 18 '23 at 12:40
i did not work for me. i edited this line to use the latest version, still same error – Vipin Verma May 19 '23 at 23:26

score 1 · Answer 10 · answered Jun 18 '23 at 12:59

Change ext.kotlin_version on projectName/android/build.gradle

buildscript {
   ext.kotlin_version = '1.8.22' //latest version
   repositories {
      google()
      mavenCentral()
   }

   dependencies {
      classpath 'com.android.tools.build:gradle:7.1.2'
      classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
   }
}

You can get the "latest kotlin_version" using the below link https://kotlinlang.org/docs/gradle-configure-project.html#apply-the-plugin

score 0 · Answer 11 · answered Apr 27 '22 at 20:19

0

Maybe anyone else is stumbling across an issue I had after upgrading flutter: If you use flutter together with aws_amplify you have to also upgrade amplify. This is a issue I had with the same error message.

answered Apr 27 '22 at 20:19

Korbinian Reiner

19
3

This does not provide an answer to the question. Once you have sufficient [reputation](https://stackoverflow.com/help/whats-reputation) you will be able to [comment on any post](https://stackoverflow.com/help/privileges/comment); instead, [provide answers that don't require clarification from the asker](https://meta.stackexchange.com/questions/214173/why-do-i-need-50-reputation-to-comment-what-can-i-do-instead). - [From Review](/review/late-answers/31640322) – A S M Sayem May 04 '22 at 19:25

score 0 · Answer 12 · answered Jan 13 '23 at 02:10

0

You can reach the latest version from here.

answered Jan 13 '23 at 02:10

Hernan

163
2
6

score 0 · Answer 13 · answered Mar 11 '23 at 00:44

0

A huge solution for updating the Android application is to delete the android folder and then run this:

flutter create .

Note: you can also run flutter upgrade command to upgrade flutter first.

answered Mar 11 '23 at 00:44

ahmnouira

1,607
13
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this need only first project. Otherwise, so many configuration issue across with us – Zekai Demir Aug 30 '23 at 11:53

score 0 · Answer 14 · answered Mar 12 '23 at 23:11

This method in latest versions works

Your project requires a newer version of the Kotlin Gradle plugin. (Android Studio)

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