Android SDK is missing, out of date, or is missing templates. Please ensure you are using SDK version 22 or later

same problem happened to me, From this

I have faced the same issue, to solve it:

1- delete (or move) the projects folder (AndroidStudioProjects).

2- Run the Android-Studio (a WELCOME screen will started).

3- From Welcome Screen choose, "Configure -> Project Defaults -> Project Structure)

4- Under Platform Settings choose SDKs.

5- Select Android SDK -> right_click delete.

6- Right_click -> New Sdk -> Android SDK -> choose your SDK dir -> then OK.

7- Choose the Build target -> apply -> OK. enjoy

I had same issue in Android Studio 3. (the project was open) so I closed the current project and the IDE automatically prompted to download the latest components. once its done everything was working correctly.

Click on Tools > SDK Manager or click SDK Manager after If you are unable to see the location of your Android SDK Location, click on edit and create a folder where you want to keep it and then click Next and Finish