I was trying to upgrade AEM 6.2 to AEM 6.4 for Publish Instance.
I followed all the steps
The upgraded instance is Up and Running but I am unable to access few consoles like assets.html miscadmin useradmin and few others.
After investigation I found that there are missing Resolver Map Entries under /system/console/jcrresolver where as these are present in the 6.2 instance
Not sure what is the issue with these missing Resolver Map Entries. I can see this message in error.log while I am trying to access these urls in the instance
04.07.2019 16:03:31.490 *INFO* [126.96.36.199  GET /assets.html/content/dam HTTP/1.1] org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Resource /assets.html/content/dam not found
There are no custom mappings under etc/maps/http also in the 6.2 instance.