如何修复“错误:无法解析:androidx”?

Abd*_*ref 5 java android gradle build.gradle

我再次回去工作以完成我的申请,但是当应用程序开始同步时,它给了我

无法解决:androidx 受影响的模块:href="openFile:D:/.android/Step View/Application/Source Code/app/build.gradle">app

我看到这样的问题,但它对我不起作用。对不起,我的英语不好。

这是我的等级。应用程序

buildscript {
    repositories {
        maven { url 'https://plugins.gradle.org/m2/' }
    }
    dependencies {
        classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.11.0, 0.99.99]'
    }
}
apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'

repositories {
    maven {
        url 'https://maven.google.com'
    }
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.xcoder.stepview"
        minSdkVersion 17
        targetSdkVersion 28
        multiDexEnabled true
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.connection_light.runner.AndroidJUnitRunner"
        manifestPlaceholders = [
                onesignal_app_id               : '6a2c7692-81ec-4d12-b973-6b78f71f380e',
                // Project number pulled from dashboard, local value is ignored.
                onesignal_google_project_number: 'REMOTE'
        ]
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    buildToolsVersion '28.0.3'
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'
    implementation 'com.google.firebase:firebase-core:16.0.6'
    implementation 'com.android.support:multidex:1.0.3'
    implementation 'com.github.kittinunf.fuel:fuel-android:1.12.1'
    implementation 'com.google.firebase:firebase-ads:17.1.2'
    implementation 'com.github.bassaer:chatmessageview:1.10.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'
    implementation 'com.github.markushi:circlebutton:1.1'
    implementation 'com.google.android.material:material:1.1.0-alpha02'
    implementation 'com.google.firebase:firebase-database:16.0.5'
    implementation 'com.github.ybq:Android-SpinKit:1.2.0'
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'commons-io:commons-io:2.5'
    implementation 'androidx.percentlayout:percentlayout:1.0.0'
    implementation 'com.onesignal:OneSignal:[3.9.1, 3.99.99]'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.connection_light:runner:1.1.1'
    androidTestImplementation 'androidx.connection_light.espresso:espresso-core:3.1.1'
}

apply plugin: 'com.google.gms.google-services'
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Ric*_*ice 0

尝试将所有 com.android* 更新为可用的 com.androidx* 版本。

确保你有...

android.enableJetifier=true
android.useAndroidX=true
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添加到您的 gradle.properties。

或者你可以这样做

With Android Studio 3.2 and higher, you can quickly migrate an existing project 
to use AndroidX by selecting Refactor > Migrate to AndroidX from the menu bar.
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https://developer.android.com/jetpack/androidx/migrate