IntlException: Constructor failed

[Dianliang233]

Describe the Bug

I keep getting this error after I upgraded the skin. I have tried the following troubleshooting steps:

• Revert to PHP 7
• Upgrade to PHP 8.1
• Upgrade to MW 1.38
• Revert to MW 1.37
• Checked my date.timezone config and made sure it's UTC so no invaild TZ

One thing worth noting is that an older version (1.10.0) of the skin is stilling working fine on my install. I haven't tested out which exact version introduced this but main branch, 1.17.5 and 1.17.4 all throws out this error.

Steps to reproduce the behavior:

1. Install the latest version of the skin
2. See error:

MediaWiki internal error.

Original exception: [19561fc8e4a5c18cc07b1e2f] /wiki/Special:%E7%89%88%E6%9C%AC IntlException: Constructor failed
Backtrace:
from /path/to/mediawiki/skins/Citizen/includes/Partials/Drawer.php(180)
#0 /path/to/mediawiki/skins/skins/Citizen/includes/Partials/Drawer.php(180): NumberFormatter->__construct()
#1 /path/to/mediawiki/skins/skins/Citizen/includes/Partials/Drawer.php(90): MediaWiki\Skins\Citizen\Partials\Drawer->getSiteStatsData()
#2 /path/to/mediawiki/skins/skins/Citizen/includes/SkinCitizen.php(124): MediaWiki\Skins\Citizen\Partials\Drawer->getDrawerTemplateData()
#3 /path/to/mediawiki/skins/includes/skins/SkinMustache.php(56): MediaWiki\Skins\Citizen\SkinCitizen->getTemplateData()
#4 /path/to/mediawiki/skins/includes/skins/SkinTemplate.php(144): SkinMustache->generateHTML()
#5 /path/to/mediawiki/skins/includes/OutputPage.php(2644): SkinTemplate->outputPage()
#6 /path/to/mediawiki/skins/includes/MediaWiki.php(944): OutputPage->output()
#7 /path/to/mediawiki/skins/includes/MediaWiki.php(957): MediaWiki::{closure}()
#8 /path/to/mediawiki/skins/includes/MediaWiki.php(564): MediaWiki->main()
#9 /path/to/mediawiki/skins/index.php(53): MediaWiki->run()
#10 /path/to/mediawiki/skins/index.php(46): wfIndexMain()
#11 {main}

Exception caught inside exception handler: [19561fc8e4a5c18cc07b1e2f] /wiki/Special:%E7%89%88%E6%9C%AC IntlException: Constructor failed
Backtrace:
from /path/to/mediawiki/skins/Citizen/includes/Partials/Drawer.php(180)
#0 /path/to/mediawiki/skins/skins/Citizen/includes/Partials/Drawer.php(180): NumberFormatter->__construct()
#1 /path/to/mediawiki/skins/skins/Citizen/includes/Partials/Drawer.php(90): MediaWiki\Skins\Citizen\Partials\Drawer->getSiteStatsData()
#2 /path/to/mediawiki/skins/skins/Citizen/includes/SkinCitizen.php(124): MediaWiki\Skins\Citizen\Partials\Drawer->getDrawerTemplateData()
#3 /path/to/mediawiki/skins/includes/skins/SkinMustache.php(56): MediaWiki\Skins\Citizen\SkinCitizen->getTemplateData()
#4 /path/to/mediawiki/skins/includes/skins/SkinTemplate.php(144): SkinMustache->generateHTML()
#5 /path/to/mediawiki/skins/includes/OutputPage.php(2644): SkinTemplate->outputPage()
#6 /path/to/mediawiki/includes/exception/MWExceptionRenderer.php(158): OutputPage->output()
#7 /path/to/mediawiki/includes/exception/MWExceptionRenderer.php(77): MWExceptionRenderer::reportHTML()
#8 /path/to/mediawiki/includes/exception/MWExceptionHandler.php(107): MWExceptionRenderer::output()
#9 /path/to/mediawiki/includes/exception/MWExceptionHandler.php(202): MWExceptionHandler::report()
#10 /path/to/mediawiki/includes/MediaWiki.php(583): MWExceptionHandler::handleException()
#11 /path/to/mediawiki/index.php(53): MediaWiki->run()
#12 /path/to/mediawiki/index.php(46): wfIndexMain()
#13 {main}

System

Please complete the following information:

• MediaWiki version [e.g. v1.33.1] v1.38
• Server OS: [e.g. Debian 10] CentOS 7.9.2009
• PHP version [e.g. v7.2.19-0ubuntu0.18.04.2] 8.0.17 (fpm-fcgi)

[alistair3149]

Have you installed php-intl and ICU? If yes, what versions are they on?

[lakejason0]

I'm also experiencing this, and it's like

intl

Internationalization support	enabled
ICU version	50.2
ICU Data version	50.2
ICU TZData version	2018e
ICU Unicode version	6.2

I'm on 7.4.25 (fpm-fcgi) tho

[Rushster]

Same problem here. On php 7.4.29 and php-intl and ICU is installed.

[alistair3149]

It is an upstream issue with the ICU installation, not much I can do on my end.
However, I added a config $wgCitizenUseNumberFormatter in which you can disable numberformatter without disabling site statistics. Setting that to false will fix your issue.