android - 为 Android Studio 错误安装 com.android.support.recyclerview-v7 的存储库

Question

我是 android studio 的初学者，我尝试使用 recyclerView。当我尝试将 compile 'com.android.support.recyclerview-v7:21.0.+' 添加到我的 gradle 文件时，出现错误:

 failed to resolve com.android.support.receyclerview-v7v7:21.0.+.

It proposes me to install repository and sync project. when I click it, i get this error:
SDK Path C:\User\userName\AppData\Local\Android\sdk1
loading SDK information
ignoring unknown package filter 'extra-android-m2repository' warning: The package filter removed all packages. There is nothing to install. Please consider trying to update again without a package filter.
install failed, please check your network connection and try again. You may continue with creating your project, but it will not compile correctly without the missing components.  

我提到我在 windows 系统上使用 sdk 23.0.0，当我第一次安装 android studio 时，我收到了一条关于代理的错误消息(不幸的是我跳过了)!!

有解决这个问题的想法吗？？!!!

Answer 1

首先，运行 SDK 管理器并检查您的支持库存储库是否已更新。

然后打开你的build.gradle(不是顶级文件)并添加:

dependencies{

    //....
    compile 'com.android.support:recyclerview-v7:23.0.0'
}

注意。您在问题中报告了库中的错字(编译“com.android.support.recyclerview-v7:21.0.+”)

使用 v23，您必须使用 API23 进行编译。

当然，您可以使用“旧”版本:

 compile 'com.android.support:recyclerview-v7:22.2.1'
 compile 'com.android.support:recyclerview-v7:21.1.3'