After upgrading from 1.7 to 1.9.9, my view concept page has an error
An error has occurred!
The following error happened somewhere on this page:
javax.el.ELException: Error reading 'personName' on type org.openmrs.User_$$_javassist_65
(The full error stack trace output is in the source of this page.)
@judy, btw, if having a retired user causes the UI to break, that’s a bug
that needs to be fixed. Was the user retired or actually missing from the
db?
If user 56 for some reason is corrupt (for instance, it points to a person that do not exist) other parts of the application will break too. In that case you should fix the user, not the concept.
Therefore a foreign key is missing in Concept table (Changed By column must reference User). Hibernate probably threw an exception when trying to load the entity.