Grade Compile error - Unknown Kotlin JVM target: 21

[Alniroza]

Bug Report

Capacitor Version

   Capacitor Doctor

Latest Dependencies:

  @capacitor/cli: 6.1.1
  @capacitor/core: 6.1.1
  @capacitor/android: 6.1.1
  @capacitor/ios: 6.1.1

Installed Dependencies:

  @capacitor/cli: 6.0.0
  @capacitor/android: 6.0.0
  @capacitor/core: 6.0.0
  @capacitor/ios: 6.0.0

[success] Android looking great! 👌
[error] Xcode is not installed

Platform(s)

Android

Current Behavior

Installed latest version of google maps (with npm install @capacitor/google-maps@next) so i can run it on Capacitor 6, but im unable to compile for android, i always get the error:

Could not determine the dependencies of task ':capacitor-google-maps:compileDebugKotlin'.

Unknown Kotlin JVM target: 21

npm run start works normally and i can use the map on web.

Expected Behavior

To compile normaly.

Code Reproduction

Just install the latest capacitor-google-maps with
npm install @capacitor/google-maps@next

Other Technical Details

java --version

java 22.0.1 2024-04-16
Java(TM) SE Runtime Environment (build 22.0.1+8-16)
Java HotSpot(TM) 64-Bit Server VM (build 22.0.1+8-16, mixed mode, sharing)

Gradle --version

------------------------------------------------------------
Gradle 8.7
------------------------------------------------------------

Build time:   2024-03-22 15:52:46 UTC
Revision:     650af14d7653aa949fce5e886e685efc9cf97c10

Kotlin:       1.9.22
Groovy:       3.0.17
Ant:          Apache Ant(TM) version 1.10.13 compiled on January 4 2023
JVM:          21.0.2 (Oracle Corporation 21.0.2+13-LTS-58)
OS:           Windows 11 10.0 amd64

variables.gradle

ext {
    minSdkVersion = 22
    compileSdkVersion = 34
    targetSdkVersion = 34
    androidxActivityVersion = '1.8.0'
    androidxAppCompatVersion = '1.6.1'
    androidxCoordinatorLayoutVersion = '1.2.0'
    androidxCoreVersion = '1.12.0'
    androidxFragmentVersion = '1.6.2'
    coreSplashScreenVersion = '1.0.1'
    androidxWebkitVersion = '1.9.0'
    junitVersion = '4.13.2'
    androidxJunitVersion = '1.1.5'
    androidxEspressoCoreVersion = '3.5.1'
    cordovaAndroidVersion = '10.1.1'
}

gradle-wrapper.properties

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip
networkTimeout=10000
validateDistributionUrl=true
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

Thanks for your help

[riccardoFasan]

Same here. I had to downgrade to Java 17 to get it working.

[dudaka]

hi, got the same issue. Need help for fixing it

[brune83]

Same issue here. Anyone has a solution???

[rodrigues86]

You need downgrade to Java 17

gradle.properties

org.gradle.java.home=/usr/lib/jvm/java-17-openjdk-amd64
kotlin.jvm.target=2.0.0

build.gradle

buildscript {
    ext.kotlin_version = '2.0.0'

    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
...

[reslear]

it helped me:

In setting, click "download sdk" and select 17:

[saloum45]

The same here, i'm about to try some of your suggestions