Recently we migrated from sitecore 9.2 to 10.2. After deploying all the custom code, everything else seems to be working except Experience Editor. It gives below error in browser console:

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I compared all the js appearing in console error with js files in vanilla instance. All of them are exactly the same. Can anyone please suggest what could be the possible reason for this issue. Thanks in advance.

  • Did you replace your ExperienceEditor.js file from your vanilla instance? Here is the location sitecore\shell\client\Sitecore\ExperienceEditor\ExperienceEditor.js Mar 23, 2023 at 14:01
  • Yes Sumit. I replaced ExperienceEditor.js file but the issue is still the same.
    – Prateek
    Mar 23, 2023 at 14:08
  • If you create a blank page without any component and open it, is it showing the same issue? Mar 23, 2023 at 14:15
  • Yes even then it is same. Even if I open Sitecore default(which is there in vanilla) page, then also it throws the same errors in browser console.
    – Prateek
    Mar 23, 2023 at 14:22
  • Can you try creating and apply an empty layout as here: sitecore.stackexchange.com/questions/34165/… does error still occur? Mar 23, 2023 at 21:39


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