Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/LearningDesignDTO.java
===================================================================
RCS file: /usr/local/cvsroot/lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/LearningDesignDTO.java,v
diff -u -r1.41.2.1 -r1.41.2.2
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/LearningDesignDTO.java	26 Nov 2014 22:02:39 -0000	1.41.2.1
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/LearningDesignDTO.java	22 Jun 2015 03:06:45 -0000	1.41.2.2
@@ -696,7 +696,7 @@
      *                The firstActivityUIID to set.
      */
     public void setFirstActivityUIID(Integer firstActivityUIID) {
-	if (!firstActivityUIID.equals(WDDXTAGS.NUMERIC_NULL_VALUE_INTEGER))
+	if (firstActivityUIID != null && !firstActivityUIID.equals(WDDXTAGS.NUMERIC_NULL_VALUE_INTEGER))
 	    this.firstActivityUIID = firstActivityUIID;
     }
 
Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java
===================================================================
RCS file: /usr/local/cvsroot/lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java,v
diff -u -r1.121.2.5 -r1.121.2.6
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java	19 Jan 2015 14:03:23 -0000	1.121.2.5
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java	22 Jun 2015 03:06:45 -0000	1.121.2.6
@@ -1302,7 +1302,7 @@
 	    }
 
 	} catch (Exception e) {
-	    throw new ImportToolContentException(e);
+	    throw new ImportToolContentException("Error while importing a sequence", e);
 	}
 
 	ldResults[0] = ldId;