Hey @milind_bachani , could you please please have a look at https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/import-package-version-mismatch-problem-after-upgrading-to-aem-6/td-p/434161 . Any pointers would be really helpful. Thank you

Hey. I ran into the same problem a few days ago. I've found a temporary solution to this problem. Could be worth a try if it's a blocker. Here's the question I had posted earlier today with some details just in case you want to use it for reference - https://experienceleaguecommunities.adobe.com/t5/...

@Jörg_Hoh 

Hello there,I've run into an import package version mismatch problem in cq-wcm-foundation bundle after performing an in place upgrade to 6.5. Please read the notes below for more details:1. Note that this error occurs right when I start my author instance for the first time. It can't be related to d...