Error while doing inplace upgrade from cq5.6.1 to AEM6.0
I am trying to perform in place upgrade as advised in guide to Upgrading to AEM 6.0.
Upgrading to AEM 6.0 - docs.adobe.com
However when I complete in-place upgrade first step.
Th eAEM gets started and launches only to give error
"
HTTP ERROR: 503
Problem accessing /. Reason:
AuthenticationSupport service missing. Cannot authenticate request.
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I want to perform next step : Migrating the Repository to Oak: but getting the error mentioned above.
I have already tried below mentioned ooptions:
1.Bouncing instance
2.deleting index.tar files from repository
but still error persists.
Thanks in advance.