Error message used by javascript client while getting an error on the api request

Internal error: no page for ID $1

An error message shown on the signup form. Parameters:
* $1 - an error code
{{Related|Twnmp-signup-error}}

Error shown instead of a map when required parameter(s) is missing.

Parameters:
* $1 - non-localized attribute name, such as 'height', 'latitude', etc

Error on $1

Internal error: Missing parameters on request.

Error message when an invalid request token was submitted

Error message when an invalid request token was submitted

Error message on special pages. Parameters:
* $1 - the role the user needs, not localized (e.g. projectadmin)
* $2 - project name

Script output to show that an error occurred. Parameters:
* $1 - the PHP method name that had the error
* $2 - the list of missing parameters (hardcoded in MediaWiki core's /maintenance/cleanupTables.inc to be separated by a comma and a space, e.g. "param1, param2")

An error message sent when the page was started on a redlink but on submit already exists.

Parameters:
* $1 - empty string

Error message, Parameters:
* $1 - variable name

Error message, Parameters:
* $1 - user-specified value

Error, when the 3rd-party OAuth developers sends users to a bad authorization url, but we know which application made the request and we can link the user to a page to contact the developer.

Parameters:
* $1 - URL

Shown as error message on [[Special:MobileLanguages]] when the title parameter given does not map to an existing page.

Parameters:
* $1 - page title

Validation error displayed on [[Special:ThrottleOverride]] when the IP address range provided exceeds the configured allowable size.

Parameters:
* $1 - The CIDR limit as configured

Used as error message on [[Special:SemanticSignup]]

Used as error message on [[Special:SemanticSignup]]

Used as error message on [[Special:SemanticSignup]]

Used as error message on [[Special:PremoderationWhiteList]]

Error message when a request token that has already been used was resubmitted