Android Question Plz help in image slider project

[KHALID SHOKRY]

hello every body
I try to have an image slider using this example
https://www.b4x.com/android/forum/threads/imageslideshow-for-b4a.122532/

but I always get an error in line 35 " missing library"
any body can help plz

 

[KHALID SHOKRY]

THANK YOU VERY MUCH FOR YOUR HELP