I got this exception suddenly while managing Radoop Connections:

It was ok early, I even got the data from hive database using this connection. But today, I wanted to run the process which is created before, it shows some error message.
Then I went to check the connection, and I got the exception detail.
I imported configuration from a Cluster Manager, and I only had to change the jar file location because other configurations are imported automatically.


Does anybody know how to fix it? I really need help.
exception message: "could not initialize class org.apache.hadoop.conf.configuration".