MultiScreen Copy List error

Hi, for my multipile choice app (total 4 sheets), to have a running error for sheet 2,3 & 4; the operation copy list cannot accept the arguments for every question, kindly help to adv how to solve it, eg, to remove the notifier or copy list many thanks.

Your help & effort is highly appreciated!

Have a nice weekend!

Export your .aia file and upload it here.

the purpose of the copy list block is to copy a list... it looks like you are trying to copy an item of the question list, which will not work...


my quiz example might be interesting for you to check... App Inventor Tutorials and Examples: Advanced Features | Pura Vida Apps


1 Like

Yes, true as Taifun said,

Hi Taifun,

Thanks for your advice!
kindly note just followed the example to amend my sheet 2 and to find another runtime error "select list item: attempt to get item number 1 of a list of length 0: [] as well as after completing question, no correct answers are showed. Kindly help any comment required to correct, tks.


sorry for typing mistake for my last sentence, kindly help any "command" required to correct, tks.

You are the only one, who is able to connect to your project...
Generally my advice is:

use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing, and Debugging Tools

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by icon24 Taifun.