Title: Latest version broken Last modified: January 31, 2017 --- # Latest version broken * Resolved [allgeekthings](https://wordpress.org/support/users/allgeekthings/) * (@allgeekthings) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/) * Since updating to Yoast SEO Version 4.2, I cannot access the SEO control panel. I get the following error message: * Fatal error: Call to undefined method yoast_i18n::set_api_url() in /home/mysite/ public_html/wp-content/plugins/wordpress-seo/vendor/yoast/i18n-module/src/i18n- module-wordpressorg.php on line 61 * The problem only seems to be happing at allgeekthings.co.uk and I’ve done the whole ‘deactivate all other plugins’ things. Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/latest-version-broken-3/page/2/?output_format=md) [→](https://wordpress.org/support/topic/latest-version-broken-3/page/2/?output_format=md) * [ccgold](https://wordpress.org/support/users/ccgold/) * (@ccgold) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8722441) * I’m having the exact same problem! I updated the plugin on 5 of my sites and all of them have this issue. * [neotrope](https://wordpress.org/support/users/neotrope/) * (@neotrope) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8722843) * Probably need to provide more info, such as PHP version, RAM allocated to WP, WP version, try disabling other plugins, etc. Make sure your version of WP meets minimum requirements for Yoast SEO. And, obviously clear your caching after any update to anything. * It’s working fine – both free and paid/pro version on dozen sites here. * TIP: a) resave permalinks b) clear all transients using wp-optimize plugin * Chris. 🙂 * [lynnb62](https://wordpress.org/support/users/lynnb62/) * (@lynnb62) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8723077) * I am having the same problem as well * [lynnb62](https://wordpress.org/support/users/lynnb62/) * (@lynnb62) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8723104) * I resaved permalinks, cleared cache and cleared transients. I’m using wP 4.7.2. * [melissanile](https://wordpress.org/support/users/melissanile/) * (@melissanile) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8723276) * Yup. Us too. WP version 4.7.2 Yoast SEO version 4.2 * all other plugins are performing as per usual. * [ophirh2](https://wordpress.org/support/users/ophirh2/) * (@ophirh2) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8724236) * I just remarked this line and it is working now. I think this line is related somehow to translation. Since I am using it in English anyway, it is working after this remark. * [ophirh2](https://wordpress.org/support/users/ophirh2/) * (@ophirh2) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8724399) * Ok. I found the real one to blame in my site. A plugin named “Better Click To Tweet” is using a PHP class named ‘yoast_i18n’ which is really wrong. * [lynnb62](https://wordpress.org/support/users/lynnb62/) * (@lynnb62) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8724482) * I disabled better click to tweet, refreshed my cache and still having problem. How did you figure out which php classes your plugins are using? * [lynnb62](https://wordpress.org/support/users/lynnb62/) * (@lynnb62) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8724762) * What do you mean you ‘remarked this line’? * [islandaire](https://wordpress.org/support/users/islandaire/) * (@islandaire) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8725142) * After upgrading this morning I received the “Fatal error: Call to undefined method yoast_i18n::set_api_url()”. In my case, it is a conflict between Yoast SEO and Clicky for WordPress…. both developed by Team Yoast. * [wpsteward](https://wordpress.org/support/users/wpsteward/) * (@wpsteward) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8726917) * Hi There. I’m the developer for Better Click To Tweet, one of the plugins that was causing a problem with the way I called the internationalization module. I just released version 5.0.2 which fixes that. * [ophirh2](https://wordpress.org/support/users/ophirh2/) * (@ophirh2) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8727017) * Thanks, Actually I renamed the class yoast_i18n in your sources to something else. But better using your version. Thanks for taking care of it. * [melissanile](https://wordpress.org/support/users/melissanile/) * (@melissanile) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8727205) * Hi [@wpsteward](https://wordpress.org/support/users/wpsteward/), Thanks so much for keeping us in the loop. I updated your plugin and it resolved the issue! * [ccgold](https://wordpress.org/support/users/ccgold/) * (@ccgold) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8727501) * I have Yoast’s Clicky for WordPress as well for all of my sites that have the issues. * [Anton Timmermans](https://wordpress.org/support/users/atimmer/) * (@atimmer) * [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/#post-8729084) * We’ve just released 4.2.1 which resolves this issue. Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/latest-version-broken-3/page/2/?output_format=md) [→](https://wordpress.org/support/topic/latest-version-broken-3/page/2/?output_format=md) The topic ‘Latest version broken’ is closed to new replies. * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908) * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/) * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq) * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/) * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/) * 18 replies * 11 participants * Last reply from: [amboutwe](https://wordpress.org/support/users/amboutwe/) * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/latest-version-broken-3/page/2/#post-8732662) * Status: resolved