hi im new with mit app inventor and my code isnt working something like: RuntimeError. Irritants: (The operation length of list cannot accept the argument: , [1] Bad arguments to length of list).
the idea is that when you click start the screen cheages between 3 images based on the image it wil set the dificulty then it hides every thing and starts the quiz after you click next you go back to the 3 images to get a new random dificulty. this is what im trying to make but i dont knwo what is wrong so pls help me i need to finsih this for a school project.
just ignore this part its just my posible answers, answers, questios and fotos.
from her on its starts to go bad because something is wrong and i dont know.
this is my .aia
QuizApp_copy.aia (3.9 MB)