No Android facet found in the module 的解决办法

在github上下载安卓代码在本机运行的时候由于环境不一样，运行时可能会报出这样的错误：
No Android facet found in the module

在IDEA/Android Stdio下可以可以这样解决：

Add an android facet to your module by following below steps.

1) Go To File Menu -> Project Structure, or press (Ctrl+Alt+Shift+S) shortcut to open “Project Structure”.

2) Select “Facets” which is under the “Project Settings” tab. (First column)

3) Click on “+” button which is at the top of the Second Column to add new facets.

4) Select “Android” facet from that “Add “menu which will prompt another dialog box to select a module. (Select a module to which you want to apply this facet).

5) Select your module and that’s it. :)