依赖性问题

Question

我想创建很酷的首选项activity。所以我从 github 中选择了大多数库之一（假设是这样的：https://github.com/codevscolor/MaterialPreference）但是当我将依赖项写入 build.gradle 时，我收到了关于

的警告

"mixing libraries versions (found versions 25.3.1. and 23.4.0.) All libraries must have the exact same version specification"

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha7'
    testCompile 'junit:junit:4.12'
    compile 'de.hdodenhof:circleimageview:1.3.0'
    //it's dependency for new great library
    compile 'com.codevscolor.materialpreference:mp:0.2.1'
}

有什么办法可以避免这个错误吗？

完整 build.gradle 在这里：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.example.parkfinder"
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha7'
    testCompile 'junit:junit:4.12'
    compile 'de.hdodenhof:circleimageview:1.3.0'
}

Answer 1

发生这种情况是因为库 com.codevscolor.materialpreference:mp:0.2.1 使用的是支持库的版本 25.4.0。您必须将支持库从 25.3.1 升级到 25.4.0 才能使用该依赖项。

因此，在您的情况下：

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    // Upgrade the support dependencies to 25.4.0
    compile 'com.android.support:appcompat-v7:25.4.0'
    compile 'com.android.support:support-v4:25.4.0'
    compile 'com.android.support:design:25.4.0'
    // Move it from alpha to the latest stable version.
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile 'de.hdodenhof:circleimageview:1.3.0'
    //it's dependency for new great library
    compile 'com.codevscolor.materialpreference:mp:0.2.1'
}

Answer 2

尝试添加

 compile 'com.android.support:preference-v7:25.3.1'

将您的 build.gradle 更新为

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support:preference-v7:25.3.1'

compile 'com.android.support:support-v4:25.3.1'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha7'
testCompile 'junit:junit:4.12'
compile 'de.hdodenhof:circleimageview:1.3.0'
//it's dependency for new great library
compile 'com.codevscolor.materialpreference:mp:0.2.1'
}

依赖性问题

Problems with dependencies

android

android-preferences

gradle-dependencies