'Why LCP gives WRC protocol error in pagespeed insights?

In pagespeed insights gives error for lcp like WRS Protocol error: "DOM.resolveNode: No node with given id found"

error screenshot



Solution 1:[1]

This error of googleChrome-lighthouse.They may have fixed this for next version.

Solution 2:[2]

It looks like an issue with some internal PageSpeed cache.

You could solve it by adding some salt to the testing url, like http://yoursite.com/?salt=1

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Aurora
Solution 2 Mike