Problem creating repository session

Hi

I am trying to run the following code which bombs out with the message <i>The MDM repository is invalid.</i> when <i>repositorySessionCmd.execute();</i> is called. Any help greatly appreciated. Here is the code:

public void createRepositorySession(RepositoryIdentifier repId) {
		
		CreateRepositorySessionCommand repositorySessionCmd = 
			new CreateRepositorySessionCommand(this.pool);
			
		repositorySessionCmd.setRepositoryIdentifier(repId);
		try {
			trace.debugT("executing RepositorySessionCommand with rep id "{0}" ...",
				new Object[]{repId.getName()});
			repositorySessionCmd.execute();
			trace.debugT("Execution of RepositorySessionCommand successful.");
		} catch (CommandException e) {
			String errMsg = "Could not create a repository session for rep id: " +
				repId.getName(); 
			trace.traceThrowableT(Severity.ERROR, errMsg, e);
			throw new RuntimeException(errMsg, e);
		}

with RepositoryIdentifier being:

RepositoryIdentifier repId = new RepositoryIdentifier(
				"DOL",
				"127.0.0.1",
				"MS_SQL");

Thanks

Paul