Android Studio issue rendering problems no render target selected

Activity_main.xml Select design Display rendering problems no render target selected

Found the answer on the StackOverflow:

You need to run the AVD Manager to add a virtual device this matches the target API version your project is set to.

Click TOOLS->ANDROID->AVD Manager. Click on ' New ', add virtual devices targeting higher API levels, e.g, etc.

Then restart for Android Studio, and open your project, it should find a target device to allow your access to the Design view.

is to create a new virtual machine, API selection High, I choose 21, restart success ...

Android Studio issue rendering problems no render target selected