Flutter: Execution failed for task ':app:compileDebugKotlin'

Go to your build.gradle file in the root of your Android directory and upgrade your Kotlin_version to the latest. As of the time of typing this, the latest is 1.5.10, so it should look like this:

ext.kotlin_version = '1.5.10'

You can find the latest Kotlin version here.

Solved the problem by deleting android/.gradle and then run the app in debug mode

A possible fix can be upgrading the project/android/build.gradle Steps to fix,

1. flutter clean
2. Delete android/.gradle
3. Go to android/build.gradle, upgrade ext.kotlin_version to latest. In my case(1.3.0 -> 1.5.10), ext.kotlin_version = '1.5.10'

After doing this as well, I was getting `A problem occurred evaluating project ':app'.

Failed to apply plugin [id 'kotlin-android'] The current Gradle version 5.6.2 is not compatible with the Kotlin Gradle plugin. Please use Gradle 6.1 or newer, or the previous version of the Kotlin plugin.`

To fix this,

1. Go to android/gradle/wrapper/gradle-wrapper.properties
2. Update the distributionUrl to the latest version.In my case((5.6.2 -> 6.1.1) it is, distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip

It was fixed after I upgraded my build.gradle file ext.kotlin_version = '1.5.10'

First of all run

flutter clean
flutter pub get

Go to andriod/build.gradle then upgrade ext.kotlin_version

buildscript {
    ext.kotlin_version = '1.5.10'
    repositories {
        google()
        jcenter()
    }

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

For me, I found that when building that 2 different MainActivity.kt files were in andriod/app/src/main/kotlin. One had a default MainActivity.kt file with the package name that was originally generated for my project. Something like 'example.project_name' . The other one had what I changed my project name into. I went ahead and deleted the folder with the MainActivity.kt containing the import starting with 'example.project_name' and that resolved the issue for me.

in android folder of your project run in terminal

gradlew clean

Then build. This worked for me.

I Update Flutter from 2.10.4 to Flutter 3.0.0 and I found All My Project Has Same Error

ensure that your ext.kotlin_version is '1.6.10'

ext.kotlin_version = '1.6.10'

and run in terminal

flutter pub cache repair

and show that your libraries in pubspec.yamel take last version and run in terminal

1 - flutter clean

2 - flutter pub get

in android studio open File --> invalidate cashes..

this worked for me !!

if this not work for you you may be need to

Delete android/.gradle

thank you .

I fix my issue here changing the file android/settings.gradle

FROM THIS

.
.
.
plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
}
.
.
.

TO THIS

.
.
.
plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
    id "org.jetbrains.kotlin.android" version "1.9.23" apply false
}
.
.
.

It was fixed after I upgraded my Flutter by running flutter upgrade

I Solved it by upgrading kotlin version in root build.gradle file:

ext.kotlin_version = '1.5.10'

First of make sure that you have latest version of flutter. For confirmation, please run flutter upgrade in command prompt / terminal:

flutter upgrade

Then visit the site Click Here and copy the new latest version of kotlin. For now: in March 02, 2022 current kotlin version is 1.6.10

Then after it:

-> Go to android/build.gradle
-> change to ext.kotlin_version = '1.6.10'

Click here to view Screenshot example

I got the problem after migrating to null-safety. I fixed it by updating the kotlin version in the file android\build.gradle

ext.kotlin_version = '1.3.50'

Then run 'flutter clean' and the app worked fine.

I have been facing this issue for couple of hours. At the end right now my issue solved by executing following steps -

- change Settings -> Build, Execution, Development -> Compiler -> Kotlin Compiler -> Kotlin to JVM -> check Enable incremental comilation -> Target JVM version 1.6 to 1.8

- add to build.gradle under repositories in both buildscript and allprojects section

maven {
        url 'http://download.flutter.io'
    }

-and lastly run on command line 'flutter pub cache repair'

I encountred the same problem and tried all the solutions proposed here in this post ... and still not working.

but only after upgrading the packages in pubspec.yaml with:

flutter pub upgrade

it worked !!

Just increase the ext.kotlin.version from whatever version you have, to '1.4.32' or whatever the latest version is available kotline version

Update to the latest version in my case it is 1.6.10 or create dummy project and check android/build.gradle and update.

ext.kotlin_version = '1.6.10'

For me, upgrade to Flutter 3.7.6 solved my problem, just run on your terminal

flutter upgrade

In our case, the package flutter_appcenter_bundle caused this issue.

To fix it, you need to run flutter precache.

This needs to be done only once and it will be effective as long as the Flutter version remains unchanged and the precached artifacts are not deleted (e.g. by deleting the Flutter root folder).

Also, the environment variable FLUTTER_ROOT needs to be set to the Flutter root folder. On Windows it's usually C:\src\flutter.

If you use AndroidStudio, you can do that in Settings > Languages & Frameworks > Flutter.

If you don't use AndroidStudio, you need to set FLUTTER_ROOT manually.

If you are sure it's not an issue with kotlin version or you need a newer version of the Android gradle plugin, then try the following

1.Delete android/.gradle

for macOS users:

sudo rm -r $HOME/.gradle

2- Delete flutter pub-cache

rm -r $HOME/.pub-cache  

3- Repair the flutter cache:

flutter pub cache repair

4- get the dependencies and build your flutter app

flutter build apk

Alternatively, delete the dependency that the build is complaining about Then!

1.Get the dependencies without the pub that is causing problems

flutter pub get

2.Fix the cache

flutter pub cache repair

3.Build the app (for android per ex)

 flutter build apk

4.Add again the dependency that was causing problems 5.Get the dependencies

flutter pub get

You are all set!

when I ran flutter upgrade in the command line prompt it was fixed and ran my app .. try it

Faced the same issue: Execution failed for task ':app:compileDebugKotlin'. Execution failed for task ':app:compileDebugKotlin'.

solution: Changed the company domain with only one dot. solution

I was using JRE for Java. I just install the AdoptOpenJDK 11 and it works

In my case, I had to set the JavaVersion according to the Kotlin version.

So to fix this error:

'compileDebugJavaWithJavac' task (current target is 1.7) and 'compileDebugKotlin' task (current target is 17)

I had to set this values in the file build.gradle:

compileOptions {
    sourceCompatibility JavaVersion.VERSION_17
    targetCompatibility JavaVersion.VERSION_17
}

In Flutter 3.27.1 I got the same error while integrating shared_preferences into my project, and the reason is the version of

com.android.application

in android/settings.gradle file

changing from:

id "com.android.application" version "8.1.0" apply false

to

id "com.android.application" version "8.2.1" apply false

I solved this issue on Windows by running the following commands in the terminal from my project's root directory. This process cleans the Gradle build cache, resolving the error.

1. First, navigate into the android folder:

   cd android
   

2. Then, run the clean command:

   gradlew.bat clean
   

After these two steps, the build worked successfully.

Comment out the code in android/app/src/main/kotlin/<app bundle name>/MainActivity.kt.

For me, my package name imported twice automatically in MainActivity file under app>main>kotlin directory. I just delete duplicates and it works fine now!

Please verify your existing Kotlin version. If you're working with Android Studio, you can do this by navigating to Tools -> Kotlin -> Configure Kotlin Plugin Updates. Once you've identified the current version, proceed to the android/build.gradle file and update the ext.kotlin_version to match that version.