CODEWITHSUNDEEP
phpwordpressfatal-error
Mark Pandi
Mark Pandi

Reputation: 19

Wordpress Problem : Fatal error: Uncaught Error: Call to undefined function

I receive an error that you can see in the bottom of my question when trying to open my Wordpress site.

In the FTP directory I have tried to disable all plugins, then also all themes but it does not help.

Fatal error: Uncaught Error: Call to undefined function determine_locale() in /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-includes/class-wp-locale-switcher.php:48 Stack trace: #0 /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-settings.php(418): WP_Locale_Switcher->__construct() #1 /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-config.php(76): require_once('/export/sd217/w...') #2 /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-load.php(37): require_once('/export/sd217/w...') #3 /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-blog-header.php(13): require_once('/export/sd217/w...') #4 /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/index.php(17): require in /export/sd217/www/jp/r/e/gmoserver/5/4/sd1019254/uniq-table.com/wordpress-4.9.2-ja-jetpack_webfont-undernavicontrol/wp-includes/class-wp-locale-switcher.php on line 48

Upvotes: 0

Views: 7632

Answers (2)

Osama Dar
Osama Dar

Reputation: 454

I was using Wordpress 5.4.2 and downloaded the same version again and simply replaced the old wp-includes folder with the new one from freshly downloaded copy. Everything worked fine after that.

Upvotes: 0

Karthik Sekar
Karthik Sekar

Reputation: 637

Check below line is available in wp-settings.php

require_once( ABSPATH . WPINC . '/l10n.php' );

and make sure your PHP version is 7.2 or greater.

Upvotes: 0

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