I installed RRC 1.0 fixpack 1. (1.0.0.1)

After I run server initialization, it completed successfuly,
but terminal console shows some warning message (below).
After this, RRC looks work and there is no problem to connect RRC Server from Client.

My question is:
Is this message OK? Do I need to care & take some action for this message?

Warning message:
$ /opt/IBM/RRCS/rrcconfig
log4j:WARN No appenders could be found for logger (org.apache.commons.httpclient .params.DefaultHttpParams).
log4j:WARN Please initialize the log4j system properly.
com.ibm.rdm.repository.client.RepositoryIOException: Response code != OK 404
at com.ibm.rdm.repository.client.RepositoryClientImpl.read(RepositoryCli entImpl.java:253)
at com.ibm.rdm.repository.client.RepositoryClientImpl.read(RepositoryCli entImpl.java:172)
at com.ibm.rdm.repository.client.RepositoryClientImpl.read(RepositoryCli entImpl.java:147)
at com.ibm.rdm.app.config.ui.jrs.RESTServices.getResource(RESTServices.j ava:107)
at com.ibm.rdm.app.config.ui.util.ConfigRuntimeUtils.isAdminRoleAssigned (ConfigRuntimeUtils.java:502)
at com.ibm.rdm.app.config.ui.actions.ServerInitialization.initializeReso urces(ServerInitialization.java:338)
at com.ibm.rdm.app.config.ui.actions.DB2MainInitialization.run(DB2MainIn itialization.java:286)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(Modal Context.java:121)
com.ibm.rdm.repository.client.RepositoryIOException: Response code != OK 404:
at com.ibm.rdm.repository.client.RepositoryClientImpl.head(RepositoryCli entImpl.java:117)
at com.ibm.rdm.app.config.ui.jrs.RESTServices.resourceExists(RESTService s.java:29)
at com.ibm.rdm.app.config.ui.util.ConfigRuntimeUtils.doesResourcesCollec tionExist(ConfigRuntimeUtils.java:526)
at com.ibm.rdm.app.config.ui.actions.ServerInitialization.initializeReso urces(ServerInitialization.java:350)
at com.ibm.rdm.app.config.ui.actions.DB2MainInitialization.run(DB2MainIn itialization.java:286)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(Modal Context.java:121)