The operation add items to list cannot accept the arguments

MIT App Inventor Help
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Hello! I was following the MakeQuiz tutorial provided and instead of using TinyDB, I wanted to try out FirebaseDB. However for some reason it keeps popping "The operation add items to list cannot accept the arguments" notification. I want to try including it in one of my apps for my school project, and the deadline is near. Please help, thank you!

makequiz4.aia (4.1 KB)

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blocks
blocks831×1466 91.6 KB

A text blank is not an empty list.

2 Likes
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Oh I see my mistake now, thank you a lot! :smiley:

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