Template:Error:must be substituted
This template must be substituted. Replace {{{{{1}}}}} with {{subst:{{{1}}}}}.
[edit] 
Template documentation
Template documentationUsage
In a template that must be substituted, add the following code at the top:
{{ {{#ifeq:{{<includeonly>subst:</includeonly>void}}|{{void}}|void|Error:must be substituted}}|template name}}
Example: Template:Demo of template that must be substituted (backlinks, edit).
{{Demo of template that must be substituted}} gives This template must be substituted. Replace {{Demo of template that must be substituted}} with {{subst:Demo of template that must be substituted}}.Template body [1]
while {{subst:Demo of template that must be substituted}} gives "Template body".
See also
- User:Pathoschild/Help/Template special effects
- Template:Error:must not be substituted (backlinks, edit)
ja:Template:Subst! sl:Predloga:Napaka:Ni substituirano