I'm assuming this concerns the wiki on http://tunearch.org. This is a solution I came up with after a little bit of testing, there may be easier or more elegant ones. 1) Create a new, temporary namespace within the recommended custom range, see https://www.mediawiki.org/wiki/Manual:Using_custom_namespaces#Creating_a_cu… . 2) Move pages in the biography namespace to the temporary one with the moveBatch maintenance script. First make a list of the pages to move by copying from https://tunearch.org/wiki/Special:AllPages?from=&to=&namespace=202 and adding the syntax for moving: ... Save to a file, e.g. move.txt and then run the script: > maintenance/run moveBatch move.txt Check the parameters if you want something extra, like no redirects. 3) Change the defintion of the biography namespace to use the new number: > define("NS_BIOGRAPHY", 3000); and remove the temporary namespace. 4) Repeat with Biography_talk and any other namspaces you want to move. That should do it. I did a bit of (small scale) tesing on a local wiki, so I'm fairly confident this will work, but as always be careful and start by testing on just a few pages so nothing goes wrong. Best, *Sebastian Berlin* Utvecklare/*Developer* Wikimedia Sverige (WMSE) E-post/*E-Mail*: sebastian.berlin(a)wikimedia.se Telefon/*Phone*: (+46) 0707 - 92 03 84 On Sun, 15 Jan 2023 at 09:51, Valerio &lt;vmp(a)silkwood.it&gt; wrote: > Hi, > I made a big mistake. > I defined a custom namespace in conflict with SocialProfile < > https://www.mediawiki.org/wiki/Extension:SocialProfile> extension: > # # # # # # # # # # # > # > # EXTRA NAMESPACES > # > # # # # # # # # # # # > ###### BIOGRAPHY ###### > define("NS_BIOGRAPHY", 202); > define("NS_BIOGRAPHY_TALK", 203); > $wgExtraNamespaces[NS_BIOGRAPHY] = "Biography"; > $wgExtraNamespaces[NS_BIOGRAPHY_TALK] = "Biography_talk"; > 202 User_profile: NS_USER_PROFILE > 203 User_profile_talk: NS_USER_PROFILE_TALK Since r93317 < > https://www.mediawiki.org/wiki/Special:Code/MediaWiki/93317>gt;. > What can I do to correct this conflict other than uninstall the Social > Profile > Thanks so much. > Valerio >  The Traditional Tune Archive > The Semantic Index of North American, British and > Irish traditional instrumental music with annotation. > ------- > Web: http://tunearch.org <http://tunearch.org/> Mail: vmp(a)tunearch.org <mailto:vmp@tunearch.org> _______________ > My Special:Version > Installed software > Product Version > MediaWiki <https://www.mediawiki.org/> 1.35.7 < > https://www.mediawiki.org/wiki/MediaWiki_1.35> (2912741) < > https://gerrit.wikimedia.org/g/mediawiki/core.git/+/2912741f0bd6dcec405d9d3… > > 00:00, July 13, 2022 > PHP <https://php.net/> 7.3.29-1+ubuntu18.04.1+deb.sury.org+1 > (apache2handler) > MariaDB <https://mariadb.org/> 10.1.48-MariaDB-0ubuntu0.18.04.1 > ICU <http://site.icu-project.org/> 65.1 > Lua <http://www.lua.org/> 5.1.5 > LilyPond <http://lilypond.org/> 2.18.2 > Elasticsearch <https://www.elastic.co/products/elasticsearch> 6.8.18 > SocialProfile <https://www.mediawiki.org/wiki/Extension:SocialProfile> 1.14 (0d678ab) < > https://gerrit.wikimedia.org/g/mediawiki/extensions/SocialProfile/+/0d678ab…:03, > November 22, 2020 > _______________________________________________ > MediaWiki-l mailing list -- mediawiki-l(a)lists.wikimedia.org > To unsubscribe send an email to mediawiki-l-leave(a)lists.wikimedia.org > https://lists.wikimedia.org/postorius/lists/mediawiki-l.lists.wikimedia.org/