Error while publishing the Process Model

Hi,

While saving process model for a particular input task I am getting an error as "There was an error in an expression in Review Exception at null : Neither variables(s) nor rules(s) found : jsonrecordprocess", though i am trying to save and publish the version which actually didn't throw any error earlier. Am not sure why this error is thrown. Can anyone suggest me the rootcause for this?

OriginalPostID-269051