Steps to reproduce:

1. Open the attached project. (Note: The platform has to be set to iOS or you won't be able to play)
2. Open the 'Main' scene and press 'Play'.
3. In the 'Game' window, on the top left corner press the scroll down menu button.
4. In the scroll down menu, select 'Map'.
5. When it loads the map, leave the project running.
6. In the editor, go to 'Projects' window and select folder 'Scripts' and open any script like for example, 'ShoppingCart.cs'.
7. When the script opens, try to make any changes in the script and save it.
8. Try to go back to the editor.

As a result, Unity crashes when it tried to recompile the script.