Gradle在添加firebase时给出了兼容性错误

Question

所以，我刚刚创建了一个新项目，在添加任何新库或任何东西之前，我刚刚添加了Firebase库，一旦我同步了gradle，它就会给我一个错误，说混合android库会导致appcompat库出现问题。

我做错了什么？我为什么会犯这样的错误？我该如何摆脱它？

以下是我的gradle文件的源代码：

apply plugin: 'com.android.application'

    android {
        compileSdkVersion 28
        defaultConfig {
            applicationId "com.femindharamshi.codifyadmin"
            minSdkVersion 21
            targetSdkVersion 28
            versionCode 1
            versionName "1.0"
            testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
        } }

    dependencies {
        implementation fileTree(dir: 'libs', include: ['*.jar'])
        implementation 'com.android.support:appcompat-v7:28.0.0'
        implementation 'com.android.support.constraint:constraint-layout:1.1.3'
        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.google.firebase:firebase-core:16.0.4'

    }

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

Answer 1

在appcompat依赖项上方添加这一行

//noinspection GradleCompatible

Answer 2

你必须检查/修复依赖冲突，

• /gradlew androidDependencies或/gradlew应用程序：依赖项

解决方案

>

力解：

//force a resolution

configurations.all {
  resolutionStrategy.force 'com.android.support:support-media-compat:28.0.0'
}

排除重复的模块

//excluding a module!

implementation ("com.android.support:appcompat-v7:28.0.0") {
   exclude group: 'com.android.support', module: 'support-media-compat'
}

更新部队支助库

ext {
    supportLibVersion = '28.0.0'
}

dependencies {
    // ... Other dependencies 
    implementation "com.android.support:appcompat-v7:$supportLibVersion"
    implementation ("com.android.support:support-v4:$supportLibVersion"){
        force = true
    }
    implementation ("com.android.support:exifinterface:$supportLibVersion"){
        force = true
    }
}

Answer 3

你可以看到这个答案。只需要这样做：

implementation ('com.google.firebase:firebase-core:16.0.4') {
    exclude group: "com.android.support"
}