Error:A problem occurred configuring project ':app'.

将项目导入android studio时出现如下问题:

Error:A problem occurred configuring project ':app'.

> Could not resolve all dependencies for configuration ':app:_debugApkCopy'.
   > Could not find com.android.support:appcompat-v7:25.3.1.
     Required by:
         project :app
   > Could not find com.android.support.constraint:constraint-layout:1.0.0-beta4.
     Required by:

         project :app

首先解决:Could not find com.android.support:appcompat-v7:25.3.1. 选中Extras进行重新install

Error:A problem occurred configuring project ':app'._第1张图片

然后解决:Could not find com.android.support.constraint:constraint-layout:1.0.0-beta4.选择support Repository

Error:A problem occurred configuring project ':app'._第2张图片

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