The decoded property name is invalid
MediaWiki:Json-error-invalid-property-name/en
Property $1 can not be used (invalid property name).
MediaWiki:Smw-property-name-invalid/en
Invalid Property ID.
MediaWiki:Wikibase-api-invalid-property-id/en
The requested name is invalid.
MediaWiki:Movepage-invalid-target-title/en
The real name is invalid.
MediaWiki:Bs-usermanager-invalid-realname/en
Property name:
MediaWiki:Pf createproperty propname/en
Property name:
MediaWiki:Pageswithprop-prop/en
The property name argument is missing.
MediaWiki:Hierarchybuilder-missing-property-name/en
The "$1" type of this property is invalid
MediaWiki:Smw unknowntype/en
Schema name is invalid.
MediaWiki:Sofa-invalidschema/en
Key name is invalid.
MediaWiki:Sofa-invalidkey/en
Name of the list is invalid
MediaWiki:Bs-extjs-pageexport-error-invalid-title/en
The property list "$1" contained an invalid property key "$2".
MediaWiki:Smw-datavalue-propertylist-invalid-property-key/en
Invalid value for property "$1".
MediaWiki:Templatedata-invalid-value/en
Invalid page name
MediaWiki:Mlm-error-title-invalid/en
Invalid translator name
MediaWiki:Apierror-cx-invalidtranslator/en
Invalid employer name.
MediaWiki:Donate interface-error-msg-invalid-employer/en
Invalid parameter "$1" for property "$2".
MediaWiki:Templatedata-invalid-param/en
This is the name of the property containing the hierarchy.
MediaWiki:Hierarchybuilder-propertyname-desc/en
The name of the template you specified is invalid.
MediaWiki:Templatesandbox-editform-invalid-template/en
Invalid user group name
MediaWiki:Invalidusergroupname-title/en
Invalid name of achievement
MediaWiki:Special-shareachievement-invalid-achievement-name/en
Invalid JSON
MediaWiki:Eventlogging-invalid-json/en
Error: the given page title is invalid.
MediaWiki:Wiki-seo-missing-page-title/en
The title is invalid.
MediaWiki:Massmessage-content-invalidtitle/en