Why can't I upgrade compose_version from compose_version = '1.1.0-beta01' to 1.2.1?

HelloCW 0
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I create an project based the wizard Empty Compose Activity of Android Studio Chipmunk | 2021.2.1 Patch 1. It can be compiled, and it works well.

I get the following running error after I upgrade compose_version from compose_version = '1.1.0-beta01' to 1.2.1.

Could not resolve all files for configuration ':app:kotlin-extension'.
   > Could not find androidx.compose.compiler:compiler:1.2.1.
     Searched in the following locations:
       - https://dl.google.com/dl/android/maven2/androidx/compose/compiler/compiler/1.2.1/compiler-1.2.1.pom
       - https://repo.maven.apache.org/maven2/androidx/compose/compiler/compiler/1.2.1/compiler-1.2.1.pom

But the app can run well when I remove kotlinCompilerExtensionVersion compose_version in build.gradle (Module), why?

build.gradle (Project)

buildscript {
    ext {
        compose_version = '1.1.0-beta01'  //I will upgrade it to 1.2.1
    }
}
plugins {
    id 'com.android.application' version '7.2.1' apply false
    id 'com.android.library' version '7.2.1' apply false
    id 'org.jetbrains.kotlin.android' version '1.5.31' apply false
}

build.gradle (Module)

plugins {
    id 'com.android.application'
    id 'org.jetbrains.kotlin.android'
}

android {
    compileSdk 32

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdk 25
        targetSdk 32
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables {
            useSupportLibrary true
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
     
    composeOptions {
        kotlinCompilerExtensionVersion compose_version //OK after I removed it
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
    buildFeatures {
        compose true
    }
    
    packagingOptions {
        resources {
            excludes += '/META-INF/{AL2.0,LGPL2.1}'
        }
    }
}

dependencies {

    implementation 'androidx.core:core-ktx:1.7.0'
    implementation "androidx.compose.ui:ui:$compose_version"
    implementation "androidx.compose.material:material:$compose_version"
    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
    implementation 'androidx.activity:activity-compose:1.3.1'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
    debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"
}
android-jetpack-compose android
2 Answers

The problem is that there is no Compose Compiler 1.2.1 version. Currently, Compose Compiler follows a different release schedule than other Compose libraries.
Here is the compatibility map and the available versions of Compose Compiler to use together with Kotlin.

In case you're wondering about using different versions between Compose Compiler and the other Compose libraries, it's totally ok to do that, and that's what you should do to have access to the latest versions of them.
You can configure your gradle as follows:

Project module

buildscript {
    ext {
        kotlinVer = '1.7.10'
        composeCompilerVer = '1.3.1' // should be compatible with kotlin version
        composeVer = '1.2.1'
    }
}

plugins {
    id 'com.android.application' version '7.2.2' apply false
    id 'com.android.library' version '7.2.2' apply false
    id 'org.jetbrains.kotlin.android' version "$kotlinVer" apply false
    // ...
}

App module

// ...

android {
    // ...

    composeOptions {
        kotlinCompilerExtensionVersion composeCompilerVer
    }

    // ...
}

dependencies {
    implementation "androidx.compose.ui:ui:$composeVer"
    implementation "androidx.compose.ui:ui-tooling-preview:$composeVer"
    // ...
}
Thales Isidoro0

The version androidx.compose.compiler:compiler:1.2.1 doesn't exist.
You can check it in the google maven repo

You can in any case use the stable version of the module compiler 1.3.0 and all the other compose dependencies at 1.2.1:

buildscript {
    ext {
        compose_compiler = '1.3.0'
        compose_version = '1.2.1'
    }
    //...
}

and then:

composeOptions {
    kotlinCompilerExtensionVersion compose_compiler
}

dependencies {
   // stable 1.2.1 releases
   implementation "androidx.compose.material:material:$compose_version"
   //... 
}

As described in the documentation the compiler 1.3.0 requires kotlin 1.7.10:

Gabriele Mariotti0
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