This error occurs when a Socket.io callback function is not defined properly or not provided as a function. It can also occur when attempting to call a callback function that hasn't been defined. It usually happens when there is a problem with the socket connection, such as an incorrect socket.io configuration or incorrect use of socket.io methods.
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Asked: 2022-02-17 11:00:00 +0000
Seen: 10 times
Last updated: Feb 19 '22
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