Editing Template:User-multi/doc (section)

== Errors ==

In certain circumstances, the template will generate errors. This is a list of all the error messages that the template might generate, and how users can resolve them.

===No username detected===
*<strong class="error">[[Template:User-multi|User-multi]] error: no username detected.</strong>

There are two possible reasons for this error. The first is simply that you have not specified a username, or you have specified a username using an unrecognised parameter name. The second is that your username contains an equals sign, and that is causing the template to interpret the first half of your username as a parameter name. Both of these problems can be fixed by trying different parameters for the username. Try using {{para|1|your username}}, {{para|User|your username}}, and {{para|user|your username}}, and if none of those work please start a new thread at [[Template talk:User-multi]].

===Not a valid project or language code===
*<strong class="error">[[Template:User-multi|User-multi]] error: "xyz" is not a valid project or language code.</strong>

This error is produced if the template is not able to process the project parameter. The project parameter must either be a valid interwiki prefix or a valid language code. See [[Help:Interwiki linking]] for a list of valid interwiki prefixes, and the [[#Not a valid language code|section on language code errors]] directly above for more details on valid language codes.

If you are sure that the interwiki prefix is valid, but you still get this error, it might be a bug in the software. This template uses [[Module:InterwikiTable]] for interwiki prefix data, so you can check to see if your site and your prefix exist in the table and fix it if they don't. If that fails to resolve the problem, please start a new thread at [[Template talk:User-multi]].

===Not a valid language code===
*<strong class="error">[[Template:User-multi|User-multi]] error: "xyz" is not a valid language code.</strong>

This error is generated if an invalid language code is specified. The language code must be a valid MediaWiki language code; for example, English is <code>en</code> and German is <code>de</code>. For a complete list of valid language codes, see the [[m:Table of Wikimedia projects|table of Wikimedia projects]].

===Not a valid link code===
*<strong class="error">[[Template:User-multi|User-multi]] error: "xyz" is not a valid link code.</strong>

This error is generated if an invalid link code is specified. For a list of valid link codes, see the [[#Codes|code list]] above. This error may be generated if a link code corresponds to a function in [[Module:UserLinks/extra]], but a recent edit to that page has rendered the function inoperable. Please check recent edits to [[Module:UserLinks/extra]], and consider moving any often-used link functions to the main module.

===No link code specified===
*<strong class="error">[[Template:User-multi|User-multi]] error: no link code specified.</strong>

This error is only generated when using [[Module:UserLinks]] directly to create a single link. The link code must be in the first positional parameter, like this: <code><nowiki>{{#invoke:UserLinks|single|</nowiki>''link code''<nowiki>|</nowiki>''other parameters ...''<nowiki>}}</nowiki></code>.

===Malformed link code detected===
*<strong class="error">[[Template:User-multi|User-multi]] error: malformed link code detected.</strong>

This error can only be generated when accessing [[Module:UserLinks]] from another Lua module. One of the link codes passed to the module was either not a string or was the blank string. This should be fixed in the Lua module that called Module:UserLinks.

=== No snippet exists ===
* <strong class="error">[[Template:User-multi|User-multi]] error: no snippet exists for the key "xyz".</strong>

This error occurs when there is an error in one of the link functions. Usually, this means that a user has added an extra link function to [[Module:UserLinks/extra]], but has tried to use a user data snippet that doesn't exist. The link function that generated this error needs to be fixed by the developers or by the local module maintainers.