Wolfram Language & System 10.4 (2016)|Legacy Documentation

This is documentation for an earlier version of the Wolfram Language.View current documentation (Version 11.2)


prints the message unless it has been switched off.

prints a message, inserting the values of the as needed.


  • Message generates output on the channel $Messages.
  • You can switch off a message using Off[symbol::tag]. You can switch on a message using On[symbol::tag].
  • Between any two successive input lines, the Wolfram Language prints a message with a particular name at most three times. On the last occurrence, it prints the message General::stop.
  • Off[General::stop] makes the Wolfram Language not stop repeating messages.
  • During the evaluation of a particular input line, names of messages associated with that input line are appended to the list $MessageList, wrapped with HoldForm. At the end of the evaluation of the n^(th) input line, the value of $MessageList is assigned to MessageList[n].
  • Message[mname,e1,e2,] is printed as StringForm[mess,e1,e2,] where mess is the value of the message mname. Entries of the form in the string mess are replaced by the corresponding .
  • Given a message specified as , Message first searches for messages for each of the languages in the list $Language. If it finds none of these, it then searches for the actual message . If it does not find this, it then performs the same search procedure for General::tag. If it still finds no message, it applies any value given for the global variable $NewMessage to symbol and .
  • If you specify a message as , then Message will search only for messages with the particular language lang.

ExamplesExamplesopen allclose all

Basic Examples  (2)Basic Examples  (2)

Issue a message:

Click for copyable input

Define a function to issue a message and return unevaluated upon an error:

Click for copyable input

Define the message:

Click for copyable input
Click for copyable input
Click for copyable input
Introduced in 1988