android - 添加 firebase 后，所有 com.android.support 库必须使用完全相同的版本规范

Question

我的 android Studio 显示此错误。

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.1.1, 26.1.0. Examples include com.android.support:animated-vector-drawable:27.1.1 and com.android.support:support-media-compat:26.1.0 less... (Ctrl+F1) There are some combinations of libraries, or tools and libraries, that are incompatible, or can lead to bugs. One such incompatibility is compiling with a version of the Android support libraries that is not the latest version (or in particular, a version lower than your targetSdkVersion).

    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    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:15.0.0'

Answer 1

您可以通过覆盖支持库来解决问题，而不是降级或排除支持库。您可以通过添加错误中的依赖项来覆盖支持库:

implementation "com.android.support:animated-vector-drawable:27.1.1"

关于这个答案的争论，你可以在Firebase中看到以下问题:

• Support Library out of date
• com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/auth/api/signin/internal/zzf;