Unknown function <name>
The function or macro <name> was used in a macro, but it is not
currently defined.
Try the following possible remedial actions:
■ Check the spelling of the name.
■ If <name> is the name of a macro, check that the macro is
defined.
■ If <name> is the name of an extension function (Pwbrowsenext
or Pwbhelp, for example) check that the extension is loaded.
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