Template:Error:must be substituted

This template must be substituted. Replace {{Template Name}} with {{Template Name}}.

Template documentation[ view · edit · history · purge ]

This documentation is transcluded from Template:Error:must be substituted/doc.

Error message for when a template needing substitution is not substituted.

The template automatically sets the following categories:

Category:Templates needing substitution (intentionally left red)

Usage

Or use the shorthand

{{Error:not substituted}}

Use in the false branch of {{ifsubst}}.

Template parameters

Parameter	Description		Default	Status
`1`			empty	optional

Template data

Parameter text is empty

TemplateData

TemplateData is a way to store information about template parameters (the description of those and of the whole template) for both humans and machines. It is used by VisualEditor and possibly other tools like Upload Wizard.

Existing template documentation
At Wikimedia Commons, it is recommended to use {{TemplateBox}} with either ‎useTemplateData=1 or ‎useTemplateData=only on the ‎/doc subpage and transcluding it with {{Documentation}} into the template. ‎<nowiki>-tags can be wrapped around the arguments, if required, to avoid templates being expanded.

Newly created template documentation and imports
Another option, especially for imported templates, or for users with JSON experience, is placing raw ‎<templatedata>-tags into the Wikitext of the template, as described in various Wikipediae.

Discussion
There is an ongoing discussion about that matter. Feel invited to comment if you are experienced in either way, your time permits and if you like to share your opinion or to make a suggestion.

Wikipedia's help about TemplateData • Commons-specific information

Error message for when a template needing substitution is not substituted.

Template parameters[Edit template data]
This template prefers inline formatting of parameters.
Parameter		Description	Type	Status
	`1`		Unknown	optional

Additional information

The template is intended to be used in the following namespaces: the Template namespace

The template is intended to be used by the following user groups: all users

Example

{{Error:must be substituted|Example}}

renders as:

This template must be substituted. Replace {{Example}} with {{subst:Example}}.

Localization

This template is localized using Module:TNT. These translations are stored in Data:I18n/Error:must be substituted.tab.