Topic on Project:Support desk

Ich wollte eine xml Datei importieren und bekomme diese Fehlermeldung.

Hat jemand einen Tip wie man das beseitigen kann ?

Which kind of XML file? Which MediaWiki version? What are exact steps to reproduce?

Probably related: Topic:Uh772ri4c03d2xt9.

You need to add an interwiki prefix to the respective field on special page "Import", e.g. if the xml file is from English wikipedia use "en" as prefix, if you are importing from a wiki called "foo.bar.com" and you are not sure about its prefix invent one. In this case "foo" appears to be a reasonable prefix. Remember to always use the same prefix for xml files coming from the same wiki. Moreover always used different prefixes for different wiki, so imports from "foo.baz.com" need e.g. "foo2" or so as prefix.

Don't understand why this is necessary, but it is mentioned in the manual, and specifying "en" for pages exported from the English Wikipedia, for example, does avoid the error message.

Ich verstehe nicht, warum dies benötigt ist, aber es ist eigentlich in der Dokumentation bewähnt. Wenn man «en» als Interwiki-Präfix eingibt, für Seiten die z.B. von der englischen Wikipedia exportiert wurde, so kann man diese Fehlermeldung vermeiden.

This is to assure that content from a foreign wiki that is being imported is actually credited and assigned to the foreign wiki and it's editors.

Ah, okay, that seems legit. It's just a bit suprising that, on private MediaWiki installations, it's non-optional and it's not immediately obvious what to do with it. There is of course the manual, so it's all good.