Help:Cite errors/Cite error ref numeric key
This page will help you to fix the error message:
Invalid <ref> tag; name cannot be a simple integer— use a descriptive title (see the help page).
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Overview[edit]
A footnote used multiple times may be defined with a name:
<ref name="foo">content</ref>
Issues and resolution[edit]
The name of the reference may not be an integer. Rename the reference to contain at least one letter. It is a good practice to give references meaningful names. Ensure that when changing the name you update all the tags that refer to that reference.
Technical[edit]
Pages with this error message are placed into Pages with incorrect ref formatting. The system message page is at Cite error ref numeric key.