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(Cannot access the database: 由于目标计算机积极拒绝，无法连接。 (localhost))
Backtrace:
#0 D:\wikis\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(897): Database->reportConnectionError('\xE7\x94\xB1\xE4\xBA\x8E\xE7\x9B\xAE\xE6\xA0\x87\xE8\xAE\xA1...')
#1 D:\wikis\wiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(572): LoadBalancer->reportConnectionError()
#2 D:\wikis\wiki\includes\GlobalFunctions.php(3075): LoadBalancer->getConnection(0, Array, false)
#3 D:\wikis\wiki\includes\cache\MessageCache.php(444): wfGetDB(-1)
#4 D:\wikis\wiki\includes\cache\MessageCache.php(403): MessageCache->loadFromDB('zh-cn', NULL)
#5 D:\wikis\wiki\includes\cache\MessageCache.php(325): MessageCache->loadFromDBWithLock('zh-cn', Array, NULL)
#6 D:\wikis\wiki\includes\cache\MessageCache.php(927): MessageCache->load('zh-cn')
#7 D:\wikis\wiki\includes\cache\MessageCache.php(856): MessageCache->getMsgFromNamespace('Gadgets-definit...', 'zh-cn')
#8 D:\wikis\wiki\includes\cache\MessageCache.php(826): MessageCache->getMessageForLang(Object(LanguageZh_hans), 'gadgets-definit...', true, Array)
#9 D:\wikis\wiki\includes\cache\MessageCache.php(766): MessageCache->getMessageFromFallbackChain(Object(LanguageZh_hans), 'gadgets-definit...', true)
#10 D:\wikis\wiki\includes\Message.php(1188): MessageCache->get('gadgets-definit...', true, Object(LanguageZh_hans))
#11 D:\wikis\wiki\includes\Message.php(950): Message->fetchMessage()
#12 D:\wikis\wiki\extensions\Gadgets\includes\MediaWikiGadgetsDefinitionRepo.php(113): Message->exists()
#13 D:\wikis\wiki\extensions\Gadgets\includes\MediaWikiGadgetsDefinitionRepo.php(83): MediaWikiGadgetsDefinitionRepo->fetchStructuredList()
#14 D:\wikis\wiki\includes\libs\objectcache\WANObjectCache.php(1004): MediaWikiGadgetsDefinitionRepo->{closure}(false, 86400, Array, NULL)
#15 D:\wikis\wiki\includes\libs\objectcache\WANObjectCache.php(906): WANObjectCache->doGetWithSetCallback('xlwiki-xl_:gadg...', 86400, Object(Closure), Array)
#16 D:\wikis\wiki\extensions\Gadgets\includes\MediaWikiGadgetsDefinitionRepo.php(90): WANObjectCache->getWithSetCallback('xlwiki-xl_:gadg...', 86400, Object(Closure), Array)
#17 D:\wikis\wiki\extensions\Gadgets\includes\MediaWikiGadgetsDefinitionRepo.php(23): MediaWikiGadgetsDefinitionRepo->loadGadgets()
#18 D:\wikis\wiki\extensions\Gadgets\includes\GadgetRepo.php(36): MediaWikiGadgetsDefinitionRepo->getGadgetIds()
#19 D:\wikis\wiki\extensions\Gadgets\GadgetHooks.php(52): GadgetRepo->getStructuredList()
#20 D:\wikis\wiki\includes\Hooks.php(195): GadgetHooks::userGetDefaultOptions(Array)
#21 D:\wikis\wiki\includes\user\User.php(1552): Hooks::run('UserGetDefaultO...', Array)
#22 D:\wikis\wiki\includes\user\User.php(5131): User::getDefaultOptions()
#23 D:\wikis\wiki\includes\user\User.php(2768): User->loadOptions()
#24 D:\wikis\wiki\includes\context\RequestContext.php(423): User->getOption('skin')
#25 D:\wikis\wiki\includes\context\ContextSource.php(153): RequestContext->getSkin()
#26 D:\wikis\wiki\extensions\MobileFrontend\includes\MobileFrontend.hooks.php(587): ContextSource->getSkin()
#27 D:\wikis\wiki\includes\Hooks.php(195): MobileFrontendHooks::onSpecialPageBeforeExecute(Object(SpecialWhatLinksHere), '\xE6\xA8\xA1\xE6\x9D\xBF:\xE6\x9D\x83\xE9\x99\x90\xE7\x94...')
#28 D:\wikis\wiki\includes\specialpage\SpecialPage.php(515): Hooks::run('SpecialPageBefo...', Array)
#29 D:\wikis\wiki\includes\specialpage\SpecialPageFactory.php(576): SpecialPage->run('\xE6\xA8\xA1\xE6\x9D\xBF:\xE6\x9D\x83\xE9\x99\x90\xE7\x94...')
#30 D:\wikis\wiki\includes\MediaWiki.php(283): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
#31 D:\wikis\wiki\includes\MediaWiki.php(851): MediaWiki->performRequest()
#32 D:\wikis\wiki\includes\MediaWiki.php(512): MediaWiki->main()
#33 D:\wikis\wiki\index.php(43): MediaWiki->run()
#34 {main}