Title: PHP error message since upgrade … Last modified: August 31, 2016 --- # PHP error message since upgrade … * Resolved [misterkhan](https://wordpress.org/support/users/misterkhan/) * (@misterkhan) * [10 years, 2 months ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/) * Hello at Time.ly * This message has appeared in my WP dashboard — * PHP extension “mbstring” needed for All-In-One-Event-Calendar is missing. Please, check your PHP configuration * Please excuse my ignorance here – can you advise, where is it missing from and what should be inserted to make things right? * All help welcomed Andrew | English Chess Federation * [https://wordpress.org/plugins/all-in-one-event-calendar/](https://wordpress.org/plugins/all-in-one-event-calendar/) Viewing 8 replies - 1 through 8 (of 8 total) * [Pavel](https://wordpress.org/support/users/uchu/) * (@uchu) * [10 years, 2 months ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7176831) * Hey Andrew, * That extension is used by the plugin and if missing it can cause some problems( mostly when you switch the views or change dates). We added this warning just to prevent possible bugs that may appear when “mbstring” is not installed. * Usually, it’s installed along with some other PHP extensions by default, but it’s missing in some configurations. To install this extension, please, contact your hosting provider or system administrator who’s responsible for server software updates. In most cases it’s an easy job for them to add it. * If your Calendar works well you can safely ignore this message. It supposed to be dismissible but we heard from our users that it appears all the time – we are going to fix that in the upcoming release. * Best regards, Pavel. * Thread Starter [misterkhan](https://wordpress.org/support/users/misterkhan/) * (@misterkhan) * [10 years, 2 months ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7176835) * Thanks Pavel – I shall follow your advice, most kind Best Andrew * [breathelifein](https://wordpress.org/support/users/biellebrunner/) * (@biellebrunner) * [10 years, 1 month ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7177074) * Any plans on fixing this? Cause it’s been a month and that damn notice is driving me crazy! I dismiss that stupid thing 10 times a day! * [Benjamin](https://wordpress.org/support/users/bsokic/) * (@bsokic) * [10 years, 1 month ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7177075) * Hi breathelifein, * Have you upgraded the plugin to the latest version? * [goatleg](https://wordpress.org/support/users/goatleg/) * (@goatleg) * [10 years, 1 month ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7177077) * We have the same issue. * Calendar Version 2.3.12 WP Version 4.5 * And we still get the error also. * [jomo](https://wordpress.org/support/users/jonathanmoorebcsorg/) * (@jonathanmoorebcsorg) * [10 years ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7177083) * ho hum, I got: No package php-mbstring available. any more details on the dependencies? * php –version PHP 5.5.34 (cli) (built: Apr 21 2016 13:12:42) Copyright (c) 1997- 2015 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies * yum install php-mbstring Loaded plugins: fastestmirror Setting up Install Process Loading mirror speeds from cached hostfile * base: mirror.sov.uk.goscomb.net * extras: mirror.sov.uk.goscomb.net * updates: mirror.sov.uk.goscomb.net base | 3.7 kB 00:00 extras | 3.4 kB 00:00 updates | 3.4 kB 00:00 No package php-mbstring available. * [breathelifein](https://wordpress.org/support/users/biellebrunner/) * (@biellebrunner) * [10 years ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-7177087) * Hi, Benjamin. Yes, I always update to the latest version of the plugin whenever one is available – and since upgrading to v 2.4.0, this message is showing up not just once on every page, whenever I load a new one, but TWICE. This is beyond annoying. Please, either get rid of it, or add a “dismiss message” on the admin panel. * (example: [http://www.imagebam.com/image/65dfe9484305677](http://www.imagebam.com/image/65dfe9484305677)) * [ernestomaserati](https://wordpress.org/support/users/ernestomaserati/) * (@ernestomaserati) * [9 years, 8 months ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-8155349) * The warning constantly appears even after this has been executed: * ``` sudo apt-get install php-mbstring php7.0-mbstring sudo phpenmod mbstring sudo service apache2 restart ``` * I have the currently latest versions of WordPress and plugins. * What is wrong? How can it be fixed? Viewing 8 replies - 1 through 8 (of 8 total) The topic ‘PHP error message since upgrade …’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/all-in-one-event-calendar.svg) * [Timely All-in-One Events Calendar](https://wordpress.org/plugins/all-in-one-event-calendar/) * [Support Threads](https://wordpress.org/support/plugin/all-in-one-event-calendar/) * [Active Topics](https://wordpress.org/support/plugin/all-in-one-event-calendar/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/all-in-one-event-calendar/unresolved/) * [Reviews](https://wordpress.org/support/plugin/all-in-one-event-calendar/reviews/) ## Tags * [calendar](https://wordpress.org/support/topic-tag/calendar/) * [mbstring](https://wordpress.org/support/topic-tag/mbstring/) * [missing](https://wordpress.org/support/topic-tag/missing/) * [php](https://wordpress.org/support/topic-tag/php/) * 8 replies * 7 participants * Last reply from: [ernestomaserati](https://wordpress.org/support/users/ernestomaserati/) * Last activity: [9 years, 8 months ago](https://wordpress.org/support/topic/php-error-message-since-upgrade/#post-8155349) * Status: resolved