android - 所有 com.android.support 库必须使用完全相同的版本规范 : 27. 0.2

Question

将 targetSdkVersion 更新为 27 后，我收到此错误消息。

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.0.2, 25.2.0. Examples include com.android.support:animated-vector-drawable:27.0.2 and com.android.support:support-media-compat:25.2.0

我知道我应该更新 com.android.support:support-media-compat 但我不知道该怎么做，因为我没有在 build.gradle 中使用它，我尝试更新 SDK 工具但是问题仍然存在。下面是 build.gradle:

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.ex"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:27.0.2'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'com.google.android.gms:play-services-ads:11.6.2'
    compile 'com.android.volley:volley:1.0.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.github.bloder:magic:1.1'
    implementation 'com.android.support:recyclerview-v7:27.0.2'
    implementation 'com.android.support:cardview-v7:27.0.2'
}

Answer 1

我手动检查了 project -> .myidea-> libraries 中的库，然后我发现我有两个使用旧版本的库:

com_android_support_support_media_compat_25_2_0 com_android_support_support_v4_25_2_0

然后只需在 builde.gradle 中添加这一行

implementation 'com.android.support:support-v4:27.0.2'

现在错误消失了。