Web Dynpro NullPointerException while saving all metadata

Web Dynpro is consitently generating an exception when I click Save All Metadata. Here is the exception text:
Plugin name: Metamodel Core
Plugin ID: com.sap.ide.metamodel.core
Method: saveAllMetaData
Message: postSave failed. projectName = IssueLoan
Exception: java.lang.NullPointerException: null
It looks like it has something to do with re-importation of the model. The sequence is not clear for me.
Did anybody get this error before?

Hi
  This seems strange. When do u get this error. Do you get it when you change something to a Webdynpro component and click on Save all metadata or what.
Well if that is the case revert back the changes and try doing them again. This happens when the automatic generation of WebDynpro fails. In most cases you may have to restart your machine and then come in again.
Let me know if it is something other than the problem mentioned above. Maybe some of us would have already encountered it
regards
Ravi

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