java - Android 构建错误 com.google.firebase :firebase-core:16. 0.8

Question

尝试将 android 中的项目与 firebase 连接，但是当添加依赖项并运行项目时，出现错误。

我尝试了不同版本的 firebase core 但仍然出现相同的错误消息，我还提高了 API 和最低 SDK 的级别，但它仍然无法运行。

gradle代码是:

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'
apply plugin: 'com.amazonaws.appsync'

repositories {
    maven { url 'https://maven.fabric.io/public' }
}

apply plugin: 'com.android.application'

android {
    lintOptions {
        checkReleaseBuilds false
        // Or, if you prefer, you can continue to check for errors in release builds,
        // but continue the build even when errors are found:
        abortOnError false
    }
    compileSdkVersion 28
    defaultConfig {
        applicationId 'com.example.example'
        minSdkVersion 21
        targetSdkVersion 28
        versionCode 26
        versionName "2.5"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    productFlavors {
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support:support-vector-drawable:27.1.1'
    implementation 'com.android.support:multidex:1.0.3'
    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'
    implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
    implementation 'com.android.support:gridlayout-v7:27.1.1'
    implementation 'com.google.android.gms:play-services:11.4.0'
    implementation 'com.cepheuen.elegant-number-button:lib:1.0.2'
    implementation 'me.anwarshahriar:calligrapher:1.0'
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.6@aar') {
        transitive = true;
    }
    implementation 'com.amazonaws:aws-android-sdk-appsync:2.6.+'
    implementation 'com.amazonaws:aws-android-sdk-s3:2.6.+'
    implementation('com.amazonaws:aws-android-sdk-mobile-client:2.6.+') { transitive = true }
    implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.0'
    implementation 'org.eclipse.paho:org.eclipse.paho.android.service:1.1.1'
    implementation files('libs/java-json.jar')
    implementation 'com.google.firebase:firebase-core:16.0.8'
}

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

尝试安装应用程序时显示此错误:

Compilation failed; see the compiler error output for details.

error: cannot access zzbckclass file for com.google.android.gms.internal.zzbck not found

Answer 1

您应该更新到最新版本的 play-services 和 firebase。

此外，您还应该避免使用 bundle 版本的 Google Play 服务。 Google Play 服务 可以有选择地包含，从而实现更小的 APK 大小。

例如

implementation 'com.google.android.gms:play-services-ads:18.1.1'

或者至少

implementation 'com.google.android.gms:play-services:18.0.0'
implementation 'com.google.firebase:firebase-core:17.0.1'