android-How to solve 'gradle build running stuck in android studio when using firebase crashlytics'

1. The purpose of this post

I would demo how to solve this error when using firebase crashlytics in android studio:

When we apply the firebase crashlytics in android studio and do a run, sometimes, the android studio is stuck in ‘gradle build running’ process, and it seems that it would never ends.

I have tried these methods:

• use the gradle parallel mode
• choose the offline mode
• clean the project and restart IntelliJ IDEA
• close the internet connection

It still not work.

2. Environments

The gradle version in gradle-wrapper.properties

distributionUrl=https://services.gradle.org/distributions/gradle-5.4.1-all.zip

the build.gradle of project:

buildscript {
    repositories {
        google()
        jcenter()
        maven { url 'https://maven.fabric.io/public' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
        classpath 'com.google.gms:google-services:4.3.2'
        classpath 'io.fabric.tools:gradle:1.31.2'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        mavenLocal()
        maven { url 'https://maven.fabric.io/public' }
    }
}

the build.gradle of app:

apply plugin: 'io.fabric'
...
apply plugin: 'com.google.gms.google-services'

3. Debug and Solution

Build and run the app, it would stuck, click the build tab at the bottom of the IDEA window, you would see that it stuck in a process named ‘crashlyticsUploadDeobs…’, So let’s disable this task:

Open your app’s build.gradle, and add these lines at the end of your script:

afterEvaluate {
    for (Task task : project.tasks.matching { it.name.startsWith('crashlyticsUploadDeobs') }) {
        task.enabled = false
    }
}

According to the gradle lifecycle documents, it says:

Project evaluation You can receive a notification immediately before and after a project is evaluated. This can be used to do things like performing additional configuration once all the definitions in a build script have been applied, or for some custom logging or profiling.

Here we add a listener to gradle, and check if exists some tasks whose name starts with ‘crashlyticsUploadDeobs’, if it matches, then disable it.

Clean, build and rerun the app, problem solved.