Fatal error at installation

Latest version of Wordpress.
Manual or automatic installation have the same result :

"Fatal error: Declaration of H5PWordPress::fetchExternalData() must be compatible with that of H5PFrameworkInterface::fetchExternalData() in /home/studiog/www/design/wp-content/plugins/h5p/public/class-h5p-wordpress.php on line 3"

It works on local wordpress, on my computer with MAMP.
Not the same website, but technically the same, just css, some plugins and content are different.

Do you understand what the error means ?

Thanks a lot for your help.
Best regards,

Not possible, same error (for information).

fnoks's picture


You are probably using an old (and insecure) version of PHP. Look at the following page: https://github.com/h5p/h5p-wordpress-plugin/issues/37


Hi !
It was PHP 4.4 !!! :-D !
Thanks a lot for your help, everything works perfectly now !
(The Wordpress website was not working on PHP 7, so i've chosen PHP 5.6 in a second time.)

Have a good day.
Best regards,

fnoks's picture

I'm glad it worked out for you :)