Category:CS1 errors: redundant parameter

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This is a tracking category for CS1 citations with redundant parameters.

Help desk

More than one of |<param1>=, |<param2>=, and |<param3>= specified

This error occurs when a Citation Style 1 or Citation Style 2 template includes more than one parameter that maps to the same meaning. For example, |author=, |last=, and |last1= are all synonyms of each other, so no more than one of these parameters should ever be used in a single template.

To resolve this error, remove or modify the redundant parameter(s).

This error occurs when a CS1 or CS2 template uses more than one type of author or editor name-list style. There are three kinds of incompatible author-name-list styles:

|authorn= and |lastn= / |firstn= (and their various aliases), |vauthors=, and |authors=

and similarly, three editor-name-list styles:

|editorn= and |editor-lastn= / |editor-firstn= (and their various aliases) as well as |veditors=

To resolve this error, choose one name-list-style. Use the chosen style for both of the author and editor name-lists.

Pages with these errors are automatically placed in Category:CS1 errors: redundant parameter.^[a]