I encountered a problem in app inventor. When I clicked a button, an error message appeared. I can't find it anywhere on the internet. Could anyone help me? Thanks a lot! "The operation + cannot accept the arguments: , ["ot Fo"], [1]" I found that when running ai companion, I can successfully fin…

I'm deeply grateful for all the guidance and assistance I've received this time. I find tinyDb very convenient to use, and it runs smoothly in AI Companion. However, after creating an .apk file, whether I install it in BlueStacks App Player or on my HTC Desire 19+ cellphone, I always get a 'not fou…

Error message is "The operation + cannot accept the arguments: , ["ot Fo"], [1]"

MIT App Inventor Help

ABG August 9, 2025, 11:22am 3

on how to deal with not found lookups ...