App inventor error 4200 : error from to chatbot code ; -1 fix

[Taifun]

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Before you ask a question / open a new topic please take care of the following points: The forum was previously searched for similar topics / issues. Give a precise (detailed) description of the issue / bug, the goal. Show the (relevant) blocks (images, screenshots of blocks in high quality). Debug your blocks (connect to Companion and right mouse click: → Do it). Name the Android / iOS version running on your (test) device. Do not open multiple threads on the same topic. If you haven't al…

Taifun