I can't rename my project after it is made!

What should I do?? Someone please help me out with this...

When you rename your project, you have a new package name but if you do not change the property AppName in screen1, then it still will use the app name of your previous app . For example if you rename multichoice_1 project to multichoice_2 when you open it go to Screen's 1 properties and change AppName to multichoice_2