Flutter compilation always displays Running Gradle task ‘assembleDebug’

When you create a Flutter project with Android Stduio, there will be all sorts of weird potholes, one after another. Finally, when you compile the Flutter project, it will keep saying Running Gradle Task ‘assembleDebug’ and then stop. A problem with flutter Could not resolve IO. Flutter is caused by the failure of the web to access Google services. There are two solutions:

I. FQ, no problem to solve the problem;

2. Modify the image.

The specific steps are as follows:

1. To findFlutte SDKIn the directoryFlutterPackaging configuration filesflutter.gradle

Path for flutter \ packages \ flutter_tools \ gradle \ flutter gradle

• Modify the configuration in step 1

buildscript {
    repositories {
        // google()
        // jcenter()
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }
    dependencies {
        classpath 'com. Android. Tools. Build: gradle: 3.5.0'}}Copy the code

• Modify configuration 2

apply plugin: FlutterPlugin

class FlutterPlugin implements Plugin<Project> {
    // private static final String MAVEN_REPO      = "https://storage.googleapis.com/download.flutter.io";
    private static final String MAVEN_REPO = "https://storage.flutter-io.cn/download.flutter.io";

    // The platforms that can be passed to the `--Ptarget-platform` flag.
    private static final String PLATFORM_ARM32  = "android-arm";
    private static final String PLATFORM_ARM64  = "android-arm64";
    private static final String PLATFORM_X86    = "android-x86";
    private static final String PLATFORM_X86_64 = "android-x64";

    // The ABI architectures.
    private static final String ARCH_ARM32      = "armeabi-v7a";
    private static final String ARCH_ARM64      = "arm64-v8a";
    private static final String ARCH_X86        = "x86";
    private static final String ARCH_X86_64     = "x86_64";
Copy the code

• Modify configuration 3

void addFlutterDependencies(buildType) {
        String flutterBuildMode = buildModeFor(buildType)
        if(! supportsBuildMode(flutterBuildMode)) {return
        }
        String repository = useLocalEngine()
            ? project.property('local-engine-repo')
            : MAVEN_REPO

        project.rootProject.allprojects {
            repositories {
                maven {
                    url repository
                }

                maven { url 'https://maven.aliyun.com/repository/google' }
                maven { url 'https://maven.aliyun.com/repository/jcenter' }
                maven { url 'http://maven.aliyun.com/nexus/content/groups/public'}}}Copy the code

2. ModifyFlutterUnder the project ofandroidUnder thebuild.gradle

buildscript {
    ext.kotlin_version = '1.3.50'
    repositories {
//        google()
//        jcenter()
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }

    dependencies {
        classpath 'com. Android. Tools. Build: gradle: 3.5.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
//        google()
//        jcenter()
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public'}}}Copy the code

After modifying the image, you should be able to rebuild.