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How to fix below error.

PHP Fatal error:  During inheritance of IteratorAggregate: Uncaught Exception: Deprecated Functionality: 
Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): 
Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /
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1 Answer 1

Reset to default
3

enter image description here

#[\ReturnTypeWillChange] add this above the function like screenshot.

It will work

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  • 1
    Thanks. It works for Magento v2.4.6. Commented Jun 2, 2023 at 13:36

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