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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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No such class field "%s" in variable %s of type %s

(F) You tried to access a key from a hash through the indicated typed variable but that key is not allowed by the package of the same type. The indicated package has restricted the set of allowed keys using the "Compile-time class fields" (fields) in the Perl Library Reference Manual (Volume 1) pragma.

ISBN 9781906966027Perl Language Reference ManualSee the print edition