This module is causing this message to be thrown when running on D10 with PHP 8.2:
Deprecated function: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in Drupal\preprocess\PreprocessPluginManager->sortPreprocessors() (line 174 of modules/contrib/preprocess/src/PreprocessPluginManager.php).
Install this module on Drupal 10 and make sure it is running on PHP version 8.2 (not 8.1, as 8.1 accepts the output of usort to be a boolean).
Just cast the output of the expression on line 174 as an integer, rather than a boolean, as usort is expecting an integer as the result of the expression: https://www.php.net/manual/en/function.usort.php: "The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second."
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A fix to this error has no UI effect.
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Ignore this issue, the problem I am reporting here is being introduced by custom code on issue ✨ Add a weight to the processors, so we can sort when they're being executed Needs work .