<strong>$1</strong> isn't a valid username.
MediaWiki:Htmlform-user-not-valid/en
Provided username not valid
MediaWiki:Bs-distributionconnector-checkpermissions-error-invalid-user/en
User "$1" is not a valid user
MediaWiki:Workflows-property-validator-valid-user-error/en
User is not valid
MediaWiki:Bs-privacy-invalid-user/en
The username is not valid.
MediaWiki:Wikilove-err-invalid-username/en
You have not specified a valid username.
MediaWiki:Globalrenamerequest-newname-err-invalid/en
You have not specified a valid username.
MediaWiki:Noname/en
Not a valid URL: $1
MediaWiki:Rss-invalid-url/en
The requested username is not valid.
MediaWiki:Centralauth-rename-badusername/en
Not a valid boolean
MediaWiki:Bs-validator-invalid-boolean/en
Not a valid float
MediaWiki:Bs-validator-invalid-float/en
Not a valid integer
MediaWiki:Bs-validator-invalid-integer/en
Not a valid string
MediaWiki:Bs-validator-invalid-string/en
Not a valid coordinate
MediaWiki:Bs-validator-invalid-coordinate/en
Not a valid list
MediaWiki:Massmessage-create-invalidsource-short/en
Not a valid URL
MediaWiki:Urlshortener-error-malformed-url/en
not a valid preference.
MediaWiki:Apiwarn-validationfailed-badpref/en
Perform test error: '$1' isn't a valid implementation.
MediaWiki:Wikilambda-performtest-error-invalidimplementation/en
$1 is not a valid parameter.
MediaWiki:Validator error unknown argument/en
Not a valid hostname specification: $1
MediaWiki:Maintenance-cleanupSpam-error-invalid/en
"$1" is not a valid title
MediaWiki:Mediafunctions-invalid-title/en
"$1" is not a valid site.
MediaWiki:Massmessage-parse-badurl/en
'''$1''' is not a valid form.
MediaWiki:Pf autoedit invalidform/en
"$1" is not a valid title
MediaWiki:Workflows-property-validator-valid-title-error/en
"$1" is not a valid title.
MediaWiki:Apiwarn-invalidtitle/en
