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Kotlin library was complied with a newer Kotlin compiler and can't be read

Time:06-02

Hello I tried to run Kotlin file on Android Studio (version 4.1) and I got an error: Kotlin library {0} was compiled with a newer Kotlin compiler and can't be read. Please update Kotlin plugin.

Even I got this error I'm able to run kotlin files but Ide don't gives me tips when I use kotlin functions and methods are marked by red colour. Kotlin version in gradle is 1.6.0, if I'm return to older version I can see tips about method names and red colour is not showed. Gradle build(app):

plugins {
    id 'com.android.application'
    id 'kotlin-android'
}

android {
    compileSdkVersion 31
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.example.kotlin_udemy4"
        minSdkVersion 26
        targetSdkVersion 31
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}

dependencies {

    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.7.0'
    implementation 'androidx.appcompat:appcompat:1.4.2'
    implementation 'com.google.android.material:material:1.6.1'
    testImplementation 'junit:junit:4. '
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

Gradle build:

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = "1.6.0"
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.1.0"
        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
}

Does anyon know how to resolve that issue ?

CodePudding user response:

Besides Kotlin version 1.6.21 ...

That version of Android Studio appears rather outdated; eg. the current version "Chipmunk" uses:

  • com.android.tools.build:gradle:7.2.1
  • jcenter() should be replaced with mavenCentral().
  • And also, use JavaVersion.VERSION_11.

CodePudding user response:

Next to isssue popup i selected "Details" link and there was information about expected version. Probably because I'm using older Android studio I got the problem. I updated Kotlin in gradle build to: 1.4.32 according to message. enter image description here

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