2406961 - "Unable to retrieve the datasource configuration : java.lang.NullPointerException: " error displayed while trying to create a new report in Crystal Reports for Enterprise 4.1 /4.2

• When trying to create a new report from Crystal Reports for Enterprise Designer after system is migrated to 4.1 SP7 or 4.2 any version:
  
  Unable to retrieve the datasource configuration : java.lang.NullPointerException: while trying to invoke the method com.crystaldecisions.enterprise.ocaframework.IProxyHandler.invoke(java.lang.reflect.Method, java.lang.Object[], java.util.Map) of a null object loaded from field com.sap.connectivity.cs.remoting.corba.svchelpers._ConfigurationProxy.m_handler of an object loaded from local variable 'this'
  
  In german:
  
  Die Datenquelle ist ungültig: 'Unable to retrieve the datasource configuration : java.lang.NullPointerException: while trying to invoke the method com.crystaldecisions.enterprise.ocaframework.IProxyHandler.invoke(java.lang.reflect.Method, java.lang.Object[], java.util.Map) of a null object loaded from field com.sap.connectivity.cs.remoting.corba.svchelpers._ConfigurationProxy.m_handler of an object loaded from local variable 'this''. Wenden Sie sich an den Administrator der Datenquelle, um das Problem zu beheben.
  
  

• SAP BusinessObjects Business Intelligence Platform 4.2
• SAP Crystal Reports for Enterprise 4.2
• SAP BusinessObjects Business Intelligence Platform 4.1 SP7
• SAP Crystal Reports for Enterprise 4.1 SP7 

crystal, Unable to retrieve the datasource configuration, java.lang.NullPointerException, upgarde, universe , KBA , BI-RA-CRE , Crystal Reports for Enterprise , Problem