The specified username ($1) is invalid
MediaWiki:Rest-invalid-user/en
The username is invalid.
MediaWiki:Bs-usermanager-invalid-uname/en
The username "$1" is invalid.
MediaWiki:Reassignedits-error-invalid/en
Invalid user specified: $1
MediaWiki:Bs-flaggedrevsconnector-wfactivity-error-provided-user/en
The PGN specified is invalid
MediaWiki:Chessbrowser-invalid-message/en
The specified title is invalid.
MediaWiki:Massmessage-create-invalidtitle/en
The specified spamlist is invalid.
MediaWiki:Apierror-massmessage-invalidspamlist/en
The specified title is invalid.
MediaWiki:Collaborationkit-createhub-invalidtitle/en
The specified title is invalid.
MediaWiki:Gotointerwiki-invalid/en
The title you specified is invalid.
MediaWiki:Templatesandbox-invalid-title/en
The title you specified is invalid
MediaWiki:Wikieditor-toolbar-tool-link-int-target-status-invalid/en
The title you specified is invalid.
MediaWiki:Wikieditor-toolbar-tool-link-int-invalid/en
The specified target page '''$1''' is invalid.
MediaWiki:Pf autoedit invalidtargetspecified/en
The specified preload page $1 is invalid.
MediaWiki:Pf autoedit invalidpreloadspecified/en
The specified username "<nowiki>$1</nowiki>" is invalid.
Specify a different username.
MediaWiki:Config-admin-name-invalid/en
The sandbox prefix you specified is invalid.
MediaWiki:Templatesandbox-invalid-prefix/en
The entity ID you specified is invalid
MediaWiki:Wikibase-rdf-entity-id-invalid/en
Invalid username "$1".
MediaWiki:Changeauthor-invalid-username/en
Invalid username "$1".
MediaWiki:Apierror-invaliduser/en
Book type specified is invalid
MediaWiki:Bs-bookshelf-error-invalid-type/en
Invalid username!
MediaWiki:Maintenance-invalidname/en
Invalid username
MediaWiki:Bs-privacy-anonymization-api-invalid-username/en
Invalid username
MediaWiki:Maintenance-deleteBatch-error-invalid/en
Invalid username
MediaWiki:Sudo-error-sudo-invaliduser/en
Invalid username
MediaWiki:Special-shareachievement-invalid-username/en
