*Please Help*GoogleFirebase : The operation add items cannot accept the arguments

MIT App Inventor Help
1

It says “the operation add items to list cannot accept the arguments” whenever i click on the button. Anyone have any suggestions?

problem
problem1021×542 35.7 KB

2

this is an ordering app btw, and the buttons are like items which will be added to your cart when clicked on via google firebase:)

3

Where are the blocks that “add items to list” ?

1 Like
4

Do you have any LIST blocks?

1 Like
5


Please export your project and post it here.

1 Like