diff --git a/.idea/misc.xml b/.idea/misc.xml
index fbb68289..5d199810 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/edu/cmu/hcii/sugilite/SugiliteData.java b/app/src/main/java/edu/cmu/hcii/sugilite/SugiliteData.java
index 62145d6a..cc717a1b 100644
--- a/app/src/main/java/edu/cmu/hcii/sugilite/SugiliteData.java
+++ b/app/src/main/java/edu/cmu/hcii/sugilite/SugiliteData.java
@@ -137,7 +137,11 @@ else if (currentBlock instanceof SugiliteOperationBlock){
     messageType, messageBody
     -------------------------
     "FINISHED_RECORDING", scriptName
-
+    "START_RECORDING_EXCEPTION", exceptionMessage
+    "END_RECORDING_EXCEPTION", exceptionMessage
+    "RUN_SCRIPT_EXCEPTION, exceptionMessage
+    "RUN_JSON_EXCEPTION", exceptionMessage
+    "ADD_JOSON_AS_SCRIPT_EXCEPTION", exceptionMessage
 
      */
     public String callbackString = "";
@@ -146,7 +150,12 @@ public void sendCallbackMsg(String messageType, String messageBody, String callb
         intent.putExtra("messageType", messageType);
         intent.putExtra("messageBody", messageBody);
         intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
-        startActivity(intent);
+        try {
+            startActivity(intent);
+        }
+        catch (Exception e){
+            //do nothing
+        }
     }
 
 
diff --git a/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteAlternativePairJSON.java b/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteAlternativePairJSON.java
new file mode 100644
index 00000000..581b1238
--- /dev/null
+++ b/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteAlternativePairJSON.java
@@ -0,0 +1,14 @@
+package edu.cmu.hcii.sugilite.communication.json;
+
+/**
+ * @author toby
+ * @date 8/1/16
+ * @time 3:28 PM
+ */
+public class SugiliteAlternativePairJSON {
+    public String type, value;
+    public SugiliteAlternativePairJSON(String type, String value){
+        this.type = type;
+        this.value = value;
+    }
+}
diff --git a/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteFilterJSON.java b/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteFilterJSON.java
index 098a8304..087552c6 100644
--- a/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteFilterJSON.java
+++ b/app/src/main/java/edu/cmu/hcii/sugilite/communication/json/SugiliteFilterJSON.java
@@ -2,6 +2,7 @@
 
 import android.graphics.Rect;
 
+import java.util.AbstractMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
@@ -25,8 +26,12 @@ public SugiliteFilterJSON(UIElementMatchingFilter filter){
                 this.parentFilter = new SugiliteFilterJSON(filter.getParentFilter());
             if(filter.getChildFilter() != null)
                 this.childFilter = new SugiliteFilterJSON(filter.getChildFilter());
-            if(filter.alternativeLabels != null && filter.alternativeLabels.size() > 0)
-                alternativeLabels = new HashSet<>(filter.alternativeLabels);
+            if(filter.alternativeLabels != null && filter.alternativeLabels.size() > 0) {
+                this.alternativeLabels = new HashSet<>();
+                for(Map.Entry<String, String> entry : filter.alternativeLabels){
+                    this.alternativeLabels.add(new SugiliteAlternativePairJSON(entry.getKey(), entry.getValue()));
+                }
+            }
         }
     }
     public UIElementMatchingFilter toUIElementMatchingFilter(){
@@ -44,11 +49,15 @@ public UIElementMatchingFilter toUIElementMatchingFilter(){
             filter.setParentFilter(parentFilter.toUIElementMatchingFilter());
         if(childFilter != null)
             filter.setChildFilter(childFilter.toUIElementMatchingFilter());
-        if(alternativeLabels != null)
-            filter.alternativeLabels = new HashSet<>(alternativeLabels);
+        if(alternativeLabels != null) {
+            filter.alternativeLabels = new HashSet<>();
+            for(SugiliteAlternativePairJSON pair : alternativeLabels){
+                filter.alternativeLabels.add(new AbstractMap.SimpleEntry<String, String>(pair.type, pair.value));
+            }
+        }
         return filter;
     }
     public String text, contentDescription, viewId, packageName, className, boundsInScreen, boundsInParent;
     public SugiliteFilterJSON parentFilter, childFilter;
-    public Set<Map.Entry<String, String>> alternativeLabels;
+    public Set<SugiliteAlternativePairJSON> alternativeLabels;
 }
diff --git a/app/src/main/java/edu/cmu/hcii/sugilite/model/block/SugiliteAvailableFeaturePack.java b/app/src/main/java/edu/cmu/hcii/sugilite/model/block/SugiliteAvailableFeaturePack.java
index 8a6a70e3..57e67b47 100644
--- a/app/src/main/java/edu/cmu/hcii/sugilite/model/block/SugiliteAvailableFeaturePack.java
+++ b/app/src/main/java/edu/cmu/hcii/sugilite/model/block/SugiliteAvailableFeaturePack.java
@@ -32,8 +32,14 @@ public SugiliteAvailableFeaturePack(SugiliteAvailableFeaturePack featurePack){
         this.parentNode = featurePack.parentNode;
         this.childNodes = new ArrayList<>(featurePack.childNodes);
         this.allNodes = new ArrayList<>(featurePack.allNodes);
-        this.alternativeChildTextList = new HashSet<>(alternativeTextList);
-        this.alternativeTextList = new HashSet<>(alternativeTextList);
+        if(featurePack.alternativeChildTextList != null)
+            this.alternativeChildTextList = new HashSet<>(featurePack.alternativeChildTextList);
+        else
+            this.alternativeChildTextList = new HashSet<>();
+        if(featurePack.alternativeTextList != null)
+            this.alternativeTextList = new HashSet<>(featurePack.alternativeTextList);
+        else
+            this.alternativeTextList = new HashSet<>();
     }
     public String packageName, className, text, contentDescription, viewId, boundsInParent, boundsInScreen;
     public boolean isEditable;