Help:Cite errors/Cite error references group mismatch

Overview
A footnote used multiple times may be defined with a name:
 * content

To invoke a named footnote:

References may also be defined within the reference list:

List-defined reference may be within groups:

List-defined references may be invoked by the standard markup or by use of r.

Issues and resolution
A list-defined reference uses a group name that is not used within any  tags.

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Examples
The reference list has a defined reference with a group named note, but there is no reference in the content with that group and name.

{{pre2| Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.