Hi, I try to replace a text with a string of numbers and then translate it into morse code but the "replace item list" does not work and gives me an error like this: [image_2020-12-21_151458] I don't what I'm doing wrong... PS:I'm a beginner Here is my program: [image_2020-12-21_151614]

OK, found it, me not paying attention! In the replacement block you have item as the index. This won't work, you have to get the index of the item :slight_smile: See blocks [blocks (11)]

Help needed for: "replace list item"

MIT App Inventor Help

TIMAI2 December 21, 2020, 2:59pm 19

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