今天在dependencies中新增最後三行的時候，系統提示報錯：

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-v7:25.2.0'
 
testCompile 'junit:junit:4.12'
compile 'com.android.support:design:25.2.0'
compile 'de.hdodenhof:circleimageview:2.1.0'
compile 'com.android.support:recyclerview-v7:24.2.1'
compile 'com.android.support:cardview-v7:24.2.1'
}

Error:(31, 13) Failed to resolve: com.android.suport:recyclerview-v7:24.2.1 

我在D:\AS\AndroidSDK\build-tools中發現我並沒有24.2.1的包，於是我改成了現有的25.0.2包。

結果僅提示Error:(31, 13) Failed to resolve: com.android.suport:cardview-v7:24.2.1 

我再次把所有的compile都改成了25.0.2包（因為我並沒有在build-tools中發現25.2.0），系統提示全部失敗。並給出提示可用25.2.0的包。

最後我將所有的compile都改成25.2.0包，新增依賴庫成功。

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-v7:25.2.0'
testCompile 'junit:junit:4.12'
compile 'com.android.support:design:25.2.0'
compile 'de.hdodenhof:circleimageview:2.1.0'
compile 'com.android.support:recyclerview-v7:25.2.0'
compile 'com.android.support:cardview-v7:25.2.0'
}