This message is generated when the instruction that checks the version in a CompiledFunction expression gives a version that is not the same as the version of the CompiledFunction interpreter that is being used.
This error will not occur in a standard version of the Wolfram Language, as the incorrect version instruction will prevent the construction of a valid CompiledFunction expression.
If you see this message in a standard version of the Wolfram Language, please contact Technical Support.
Off[message] switches off the message; On[message] switches it on. For example: Off[CompiledFunction::cfver].