Help:Cite errors/Cite error ref no key

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

To invoke a named footnote:
 * 

Issues and resolution
A named reference has a malformed name. This is produced by a construct like or by an invalid footnote name; either create a full reference such as content or give the tag a name like .

Names
Names for footnotes and groups follow several rules:


 * They are case sensitive
 * They may not be a numeric integer
 * If the name includes non-ASCII characters or a space, punctuation or other mark, then the name must be enclosed in straight quotes ("); quotes are optional if the only characters used are letters A–Z, a–z; digits 0–9, period or hyphen-minus
 * Quote enclosed names may not include a less-than sign (<) or a quote symbol (")

It is recommended that names be kept simple and restricted to the standard English alphabet and numerals.

Examples
In this example, reference 1 improperly starts with :

{{pre2| Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Reference 1 Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.