It is possible that you didn't create the activity when you created the project and that's the reason you don't see the layout in your When you created the project:
Please follow these steps:
1) Enter your application name in the wizard.
2) Enter Project Name
3) Enter package name.
4) Check mark on 3 items when you clck next "Create custom launcher icon", "Create activity", "Create project in workspace"
5) Again when you click next, Check mark on Create Activity and do next.
6) Make sure that the next screen has all the fields populated. Like (Activity name, Layout name)
7) After all that, click finish.
You must have missed all these steps while creating your project. Try this.