我已经从Debian安装了MediaWiki CMS。 在从Squeeze到Jessie更新操作系统之前，所有扩展都运行良好。 升级后，一些扩展程序停止工作：小工具，WikiEditor。 “小工具”扩展名位于版本页面上使用的扩展名列表中。小工具配置页面位于单独页面列表中，以及完整的用户设置中。但是在包含wiki文章的页面上，小工具不会出现（例如Gadget-UTCLiveClock）。我没有在页面的源代码中看到对此脚本的调用。
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在镜像版本（Debian Squeee，MediaWiki 1.25）中都可以工作。
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我将官方网站上的MediaWiki 1.28从tar存档安装到新目录和新架构，没有额外的扩展。我设置了Gadget-UTCLiveClock，但它仍无法在文章页面上运行。
日志中没有错误。
可能是什么问题？
MediaWiki 1.28.0 PHP 5.6.30-0 + deb8u1（apache2handler） MySQL 5.5.54-0 + deb8u1 Debian Jessie 3.16.0-4-amd64＃1 SMP Debian 3.16.39-1 + deb8u2（2017-03-07）x86_64 GNU / Linux