找不到'com.android.support:design:22.2.0'

Question

我想使用FloatingActionButton，但为此我需要库：

compile 'com.android.support:design:22.2.0'

但是当我把它添加到我的gradle中时，我收到了消息：

A problem occurred configuring project ':myModule'.
Could not resolve all dependencies for configuration ':myModule:_debugCompile'.
   Could not find com.android.support:design:22.2.0.
     Searched in the following locations:
         https://jcenter.bintray.com/com/android/support/design/22.2.0/design-22.2.0.pom
         https://jcenter.bintray.com/com/android/support/design/22.2.0/design-22.2.0.jar
         file:/D:/Development/Android/sdk/extras/android/m2repository/com/android/support/design/22.2.0/design-22.2.0.pom
         file:/D:/Development/Android/sdk/extras/android/m2repository/com/android/support/design/22.2.0/design-22.2.0.jar
         file:/D:/Development/Android/sdk/extras/google/m2repository/com/android/support/design/22.2.0/design-22.2.0.pom
         file:/D:/Development/Android/sdk/extras/google/m2repository/com/android/support/design/22.2.0/design-22.2.0.jar
     Required by:
         myProject:myModule:unspecified

我尝试更新Android SDK，但所有内容都是最新的：

那么为什么com.android.support:design:22.2.0无法解决？

这是我的傻瓜：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "de.bla.myProject"
        minSdkVersion 19
        targetSdkVersion 22
        compileOptions {
            sourceCompatibility JavaVersion.VERSION_1_7
            targetCompatibility JavaVersion.VERSION_1_7
        }
    }

    buildTypes {
        debug {
            debuggable true
        }
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile project(':androidcircularcrop_lib')
    compile 'com.google.code.gson:gson:2.2.4'
    compile 'com.android.support:appcompat-v7:22.0.0'
    compile 'com.google.android.gms:play-services:+'
    compile 'com.android.support:design:22.2.0'
    compile files('libs/eventbus-3.0.0-beta1.jar')
    compile files('libs/mpandroidchartlibrary-2-1-0.jar')
    compile files('libs/picasso-2.4.0.jar')
    compile files('libs/YouTubeAndroidPlayerApi.jar')
}

Answer 1

查看构建文件，始终设置target并将sdk编译为相同的数字。 appcompat lib也是sdk的一部分，因此当使用22.x.x支持lib时，你需要至少需要22个sdk以确保兼容性，更不用说找到lib了。 另外，Arkadiy建议使用与Android工作室兼容的最新构建工具和gradle版本。