Bad title "$1".
MediaWiki:Apierror-invalidtitle/en
Bad title
MediaWiki:Flow-error-invalid-topic-uuid-title/en
Invalid title: $1
MediaWiki:Bs-parser-error-invalid-title/en
Invalid title "$1"!
MediaWiki:Maintenance-invalidtitle/en
Invalid title: "$1"
MediaWiki:Indexfunc-badtitle/en
Invalid title
MediaWiki:Pagecheckout-error-no-title/en
Invalid title.
MediaWiki:Growthexperiments-help-panel-questionposter-invalid-title/en
Invalid title
MediaWiki:Ps-createpage-invalidtitle/en
Invalid title.
MediaWiki:Contributors-badtitle/en
Invalid title.
MediaWiki:Visualeditor-title-error/en
Invalid title
MediaWiki:Workflows-activity-error-no-title/en
Invalid title
MediaWiki:Templatewizard-invalid-title/en
Invalid index title "$1".
MediaWiki:Apierror-proofreadpage-invalidindex/en
Invalid title provided
MediaWiki:Bs-checklist-savelist-error-invalid-title/en
Invalid story title
MediaWiki:Wikistories-builder-publishform-invalidtitle-format/en
Invalid page title
MediaWiki:Visualeditor-linkinspector-illegal-title/en
Bad revision id/title combination.
MediaWiki:Apierror-mobilefrontend-badidtitle/en
The title is invalid.
MediaWiki:Massmessage-content-invalidtitle/en
Missing or invalid title.
MediaWiki:Twocolconflict-special-malformed-title/en
Error: invalid parent page title: '$1'
MediaWiki:Genealogy-invalid-parent-title/en
Error: invalid partner page title: '$1'
MediaWiki:Genealogy-invalid-partner-title/en
The specified title is invalid.
MediaWiki:Collaborationkit-createhub-invalidtitle/en
The specified title is invalid.
MediaWiki:Massmessage-create-invalidtitle/en
Invalid page title was provided.
MediaWiki:Flow-error-invalid-title/en
Error: "$1" is an invalid page title.
MediaWiki:Pf formstart badtitle/en