yes i did but one new problem had occured
it is saying like this when i build the apk
i will give my aia file can u give me the apk link loaded in google drive
Your media list is endless 
yes it has more than 15 screens
App Inventor doesn't support more than 10 screens!!
Maybe this is the reason your project isn't compiling.
See this -
http://ai2.appinventor.mit.edu/reference/other/manyscreens.html
Do it ......
it will work but it may have some issues here and there i have made and app with 23 screens
ok should i remove all assests and give you or with all the assests i have only images and one gif file