Android Studio - gradle 警告：所有 com.android.support

Question

我在下一行收到警告

implementation 'com.android.support:appcompat-v7:28.0.0'

警告：

All com.android.support libraries must use the exact same version specification 

(mixing versions can lead to runtime crashes). 

Found versions 28.0.0, 24.0.0. 

Examples include com.android.support:animated-vector-drawable:28.0.0 

and com.android.support:mediarouter-v7:24.0.0

Inspection info: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).  

Issue id: GradleCompatible

下面是我的 build.gradle(app) 代码（Firebase 库的新更新）

apply plugin: 'com.android.application'

android {

    compileSdkVersion 28

    defaultConfig {

        applicationId "com.vanessa.orderfoodserver"

        minSdkVersion 21

        targetSdkVersion 28

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        multiDexEnabled true

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }

    }

}

dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])

    //Add Library

    implementation 'com.jaredrummler:material-spinner:1.1.0'

    //Firebase

    implementation 'com.google.firebase:firebase-storage:16.0.5'

    implementation 'com.google.firebase:firebase-auth:16.1.0'

    implementation 'com.firebaseui:firebase-ui-database:4.3.1'

    implementation 'com.google.firebase:firebase-database:16.0.6'

    implementation 'com.google.firebase:firebase-core:16.0.6'

}

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

我试图添加

com.android.support:support-v4:28.0.0

com.android.support:animated-vector-drawable:28.0.0

com.android.support:mediarouter-v7:28.0.0

但警告仍然存在。

我可以运行我的应用程序，但我仍想修复此警告。谢谢！

Answer 1

implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'implementation 'com.android.support.constraint:constraint-layout:1.1.2'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.android.support:design:28.1.0'或尝试 implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support:animated-vector-drawable:28.0.0' implementation 'com.android.support:exifinterface:28.0.0' implementation 'com.android.support:cardview-v7:28.0.0' implementation 'com.android.support:customtabs:28.0.0' implementation 'com.android.support:support-media-compat:28.0.0' implementation 'com.android.support:support-v4:28.0.0'

Answer 2

我对你的建议是，尝试为你的项目查看每个单独库的每个最新版本。有些库甚至彼此版本不同。Lib A ver 可能是 2.0，Lib B ver 可能是 2.5，但两者都是最新的（例如 Firebase）。此依赖库版本是 Android Studio 3.0.+ 迁移的一部分。