I seem to have problems with installation of Wikibase repository. I'm oding the following:
After the last step of installation I try to access any page, for example Special:SpecialPages and get the following error:
Unexpected non-MediaWiki exception encountered, of type "InvalidArgumentException"
[634b7ae4] /wikibase/index.php/Special:SpecialPages Exception from line 48 of /var/www/html/wikibase/extensions/Wikibase/repo/includes/GenericEventDispatcher.php: $listener must implement Wikibase\Lib\Store\EntityStoreWatcher
Backtrace:
#0 /var/www/html/wikibase/extensions/Wikibase/repo/includes/store/sql/SqlStore.php(549): Wikibase\Repo\GenericEventDispatcher->registerWatcher(Wikibase\Lib\Store\CachingEntityRevisionLookup)
#1 /var/www/html/wikibase/extensions/Wikibase/repo/includes/store/sql/SqlStore.php(513): Wikibase\SqlStore->newEntityRevisionLookup()
#2 /var/www/html/wikibase/extensions/Wikibase/repo/includes/store/sql/SqlStore.php(455): Wikibase\SqlStore->getEntityRevisionLookup(string)
#3 /var/www/html/wikibase/extensions/Wikibase/repo/includes/WikibaseRepo.php(316): Wikibase\SqlStore->getEntityLookup(string)
#4 /var/www/html/wikibase/extensions/Wikibase/repo/includes/WikibaseRepo.php(488): Wikibase\Repo\WikibaseRepo->getEntityLookup()
#5 /var/www/html/wikibase/extensions/Wikibase/repo/includes/WikibaseRepo.php(582): Wikibase\Repo\WikibaseRepo->getValueFormatterBuilders()
#6 /var/www/html/wikibase/extensions/Wikibase/repo/includes/WikibaseRepo.php(567): Wikibase\Repo\WikibaseRepo->newSummaryFormatter()
#7 /var/www/html/wikibase/extensions/Wikibase/repo/includes/specials/SpecialWikibaseRepoPage.php(74): Wikibase\Repo\WikibaseRepo->getSummaryFormatter()
#8 /var/www/html/wikibase/extensions/Wikibase/repo/includes/specials/SpecialNewEntity.php(64): Wikibase\Repo\Specials\SpecialWikibaseRepoPage->__construct(string, string)
#9 /var/www/html/wikibase/extensions/Wikibase/repo/includes/specials/SpecialNewItem.php(36): Wikibase\Repo\Specials\SpecialNewEntity->__construct(string)
#10 /var/www/html/wikibase/includes/specialpage/SpecialPageFactory.php(345): Wikibase\Repo\Specials\SpecialNewItem->__construct()
#11 /var/www/html/wikibase/includes/specialpage/SpecialPageFactory.php(375): SpecialPageFactory::getPage(string)
#12 /var/www/html/wikibase/includes/specials/SpecialSpecialpages.php(54): SpecialPageFactory::getUsablePages(User)
#13 /var/www/html/wikibase/includes/specials/SpecialSpecialpages.php(42): SpecialSpecialpages->getPageGroups()
#14 /var/www/html/wikibase/includes/specialpage/SpecialPage.php(379): SpecialSpecialpages->execute(NULL)
#15 /var/www/html/wikibase/includes/specialpage/SpecialPageFactory.php(503): SpecialPage->run(NULL)
#16 /var/www/html/wikibase/includes/Wiki.php(285): SpecialPageFactory::executePath(Title, RequestContext)
#17 /var/www/html/wikibase/includes/Wiki.php(588): MediaWiki->performRequest()
#18 /var/www/html/wikibase/includes/Wiki.php(447): MediaWiki->main()
#19 /var/www/html/wikibase/index.php(46): MediaWiki->run()
#20 {main}