Learn the cause and how to get to the bottom of the ORA-00107 error message in Oracle.
Description
When you stumble upon an ORA-00107 error, the following error message will appear:
ORA-00107: failed to connect to community listener system
Cause
The community listener manner was no longer been correctly started.
Resolution
The option(s) to resolve this Oracle error are:
Option #1
Make certain that the network configuration file is set up correctly.
Option #2
Make positive that the client-side tackle is set up correctly.
Option #3
Make positive that the listener initialization parameter file is set up correctly.