MediaWiki:Title-invalid-talk-namespace
The requested page title refers to an incorrectly specified talk page for a page in another namespace. Talk pages of non-mainspace pages should be written as "Project talk:Foo", not "Talk:Project:Foo".
The requested page title refers to an incorrectly specified talk page for a page in another namespace. Talk pages of non-mainspace pages should be written as "Project talk:Foo", not "Talk:Project:Foo".