Are you certain that error is being generated from a Gantry file?
Upgrade to the latest 5.5.17 version of Gantry
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Seems likely, as I change to the Casseopea theme, and the message dissapears, when I switch from English to Spanish. Back to rt_clarity and it returns.
I just checked, and am using Gantry 5.5.17
I understand that I can change my error level reporting to not show these deprecations. Should I be concerned about deprecated error messages at all?
What's the full error... what file specifically threw the error you're referencing? Turn up Joomlas error handling or enable Gantry's development mode and full Whoops Handler errors (under the Platform Settings:
docs.gantry.org/gantry5/configure/extras#platform-settings
) to get the full stack trace... its possible it's a Clarity file or it's possible it's from an override you have in Clarity's /html/ folder or it's possible it's another 3rd party component or plugin
You do not need to be concerned about them for the remainder of the PHP 8 series, they're just warnings stating that the function still excecated but it should of been written differently and MAY be unsupported in future versions (PHP 9+).
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