=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/trackedentity/TrackedEntityInstanceService.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/trackedentity/TrackedEntityInstanceService.java	2014-05-20 16:53:40 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/trackedentity/TrackedEntityInstanceService.java	2014-05-20 16:55:16 +0000
@@ -101,7 +101,7 @@
 
     public static final int ERROR_ENROLLMENT = 2;
 
-    public static final String SEPERATOR = "_";
+    public static final String SEPARATOR = "_";
 
     /**
      * Returns a grid with tracked entity instance values based on the given

=== modified file 'dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java'
--- dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java	2014-05-20 16:53:40 +0000
+++ dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/DefaultTrackedEntityInstanceService.java	2014-05-20 16:55:16 +0000
@@ -604,7 +604,7 @@
 
             if ( validationCriteria != null )
             {
-                return TrackedEntityInstanceService.ERROR_ENROLLMENT + TrackedEntityInstanceService.SEPERATOR
+                return TrackedEntityInstanceService.ERROR_ENROLLMENT + TrackedEntityInstanceService.SEPARATOR
                     + validationCriteria.getId();
             }
         }

=== modified file 'dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/hibernate/HibernateTrackedEntityInstanceStore.java'
--- dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/hibernate/HibernateTrackedEntityInstanceStore.java	2014-05-20 16:53:40 +0000
+++ dhis-2/dhis-services/dhis-service-tracker/src/main/java/org/hisp/dhis/trackedentity/hibernate/HibernateTrackedEntityInstanceStore.java	2014-05-20 16:55:16 +0000
@@ -41,6 +41,7 @@
 import static org.hisp.dhis.trackedentity.TrackedEntityInstanceQueryParams.ORG_UNIT_ID;
 import static org.hisp.dhis.trackedentity.TrackedEntityInstanceQueryParams.TRACKED_ENTITY_ID;
 import static org.hisp.dhis.trackedentity.TrackedEntityInstanceQueryParams.TRACKED_ENTITY_INSTANCE_ID;
+import static org.hisp.dhis.trackedentity.TrackedEntityInstanceService.*;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -448,13 +449,12 @@
                 criteria.add( Restrictions.eq( "programInstance.program", program ) );
             }
 
-            Number rs = (Number) criteria.setProjection(
-                Projections.projectionList().add( Projections.property( "attribute.id" ) ) ).uniqueResult();
+            Number rs = (Number) criteria.setProjection( Projections.projectionList().add( 
+                Projections.property( "attribute.id" ) ) ).uniqueResult();
 
             if ( rs != null && rs.intValue() > 0 )
             {
-                return TrackedEntityInstanceService.ERROR_DUPLICATE_IDENTIFIER
-                    + TrackedEntityInstanceService.SEPERATOR + rs.intValue();
+                return ERROR_DUPLICATE_IDENTIFIER + SEPARATOR + rs.intValue();
             }
         }