Application not deploying on Local

Hi Team,

We are currently using:-
BuildDate Wed Mar 05 15:52:00 IST 2014
Version 4.1p
SCVersionNumber v9.1p_2014-03-05


We are getting below error on our local development mode. Can you please elaborate on this -

An error has occurred. See error log for more details.
Could not initialize class com.google.gwt.eclipse.oophm.model.LabelProviderUtilities.

But the same application was running all right yesterday and no Db change or code change has been done since then.