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Main dispatcher missing on version 1.2.1 (android gradle plugin 3.5.0-beta02)

See original GitHub issue

When upgrading our project to coroutines version 1.2.1 (from 1.2.0), we get a

    java.lang.IllegalStateException: Module with the Main dispatcher is missing. Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android'

Here are the relevant parts of our build.gradle:

root:

    ext.coroutines_version = '1.2.1'

one of many library modules in our project module: (all looking basically the same, there is no import of another version somewhere)


dependencies {
    /* Test */
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    /* Kotlin */
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"

    /* Coroutines */
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"

Gradle version: 5.4.1 Android gradle plugin: 3.5.0-beta02

The same configuration works using the older agp version 3.4.0 or the older coroutines version 1.2.0

Issue Analytics

State:
Created 4 years ago
Reactions:2
Comments:9 (6 by maintainers)

Top GitHub Comments

1reaction

LouisCADcommented, May 25, 2019

I just reported it myself to bring awareness early to the Android Gradle plugin team: https://issuetracker.google.com/issues/133495912 @sellmair if you have additional details that could help them, please, share them into that linked issue.

1reaction

elizarovcommented, May 23, 2019

May I ask to report the bug to AGP then?

Top Results From Across the Web

Module with Main dispatcher is missing - Stack Overflow

Using just the kotlinx-coroutines-android version solves the problem.

runtime NPE in Kotlin Coroutine Dispatcher - Issue Tracker

... Plugin for Android. classpath 'com.android.tools.build:gradle:3.5.0-alpha03' ... IllegalStateException: Module with the Main dispatcher is missing.

Dispatchers.Main - Kotlin

A coroutine dispatcher that is confined to the Main thread operating with UI objects. Usually such dispatchers are single-threaded.

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