What's wrong with connecting to postgres via jpa?

Question

PostgreSQL

I started developing a project to work with a database. I chose hibernate via jpa. When connected, it throws an exception Unable to build Unable to build entity manager factory. Tell me what to do!
Thanks in advance.

Answer 1

This exception says that:
a) jpa.xml not found
b) hibernate.xml not found
c) Any error in POJO or DAO classes.
d) Strongly depends on the context, for example in spring it can also mean errors in the bean configuration.
I can say more if I see the full stack trace.

Answer 2

For such questions, you need to attach a configuration. Show jpa config files.