Help:Cite errors/Cite error references invalid parameters group

Overview
When a page is referenced with  tags, then the page must also have markup to show the reference list. The reference list is shown by including either of the following:




 * or



shows a basic reference list, whereas may add formatting for font size and columns, depending on the skin and parameters used. This is normally placed in a References section near the end of the page.

References may also be assigned to groups; see WQ:REFGROUP for details. Grouped reference lists are shown with:




 * or



Issues and resolution
The tag is malformed. Using the template will avoid most of the possible issues with the  tag. See the documentation for details.

Examples
In this example, the group parameter is misspelled. This also causes to show.

{{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. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum elit, nec luctus magna felis sollicitudin mauris. Integer in mauris eu nibh euismod gravida.