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Reported for: WPML Multilingual CMS 4.2.2


This fatal error is occurring on the first install of WPML (with version 4.2.2) when there are differences in the charset of some tables.

This problem has been fixed with WPML version 4.2.3.


There is currently no workaround for this issue.

7 Responses to “Fatal error: COLLATION ‘utf8_general_ci’ is not valid for CHARACTER SET ‘utf8mb4’”

  1. Thank you! If you need another example to test it with it’s happening on my end as well…as you know. Happy to provide login or test for you guys.

    • Hi @krzysztofN-2,

      We are running some pre-release tests now. If no problem is detected we should publish a hotfix version today (maybe late though).

  2. We released WPML 4.2.3 which includes a fix for this issue. Please update you WPML plugin if you run into this problem.