ଶ୍ରେଣୀ:CS1 errors: empty unknown parameters

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This is a tracking category for CS1 citations that have empty parameter whose names are not known.

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Cite has empty unknown parameter: <param>

This error message is hidden. To show this error message see Controlling error message display.

This error message highlights cs1|2 templates that hold empty parameters with names that are not known to cs1|2. This error message is a companion to Unknown parameter |xxxx= ignored.

Empty positional parameters, which typically look like two adjacent pipes in a template, | |, or a pipe and then the end of the template, |}}, are identified as numbered parameters: |1=. Parameters that have both a pipe and an equal sign but do not have a name are identified as empty string parameters: |= or | =|(empty string)=. Various templates that wrap cs1|2 templates may cause this error when they use constructs like this: |{{#if:{{{2|}}}|title}}={{{2|}}}. When {{{2|}}} does not have a value, the template creates |=.

To resolve this error, remove the extra pipe, correct the parameter name, or remove the parameter from the cs1|2 template.

Pages with this error are automatically placed in Category:CS1 errors: empty unknown parameters.[a]


  1. Pages in the Book talk, Category talk, Draft talk, Education Program talk, File talk, Help talk, MediaWiki talk, Module talk, Portal talk, Talk, Template talk, User, User talk, and Wikipedia talk namespaces are not included in the error tracking categories.

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