diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53d398c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/node_modules/
+/build
+/package-lock.json
\ No newline at end of file
diff --git a/import.bat b/import.bat
index 1e36096..04d2e8a 100644
--- a/import.bat
+++ b/import.bat
@@ -6,7 +6,7 @@
 @echo off
 
 :: CHANGE THIS PATH TO YOUR CACHÉ INSTALLATION PATH ON WINDOWS (folder that contains bin, CSP, mgr and other folders)
-set CACHE_DIR=C:\Program Files\InterSystems\Ensemble
+set CACHE_DIR=C:\Program Files\Ensemble-2017
 :: NAMESPACE TO IMPORT PACKAGE TO
 set NAMESPACE=USER
 :: Other variables
diff --git a/package.json b/package.json
index 1ac3918..891446a 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "CacheClassExplorer",
-  "version": "1.21.0",
+  "version": "1.21.1",
   "description": "Class Explorer for InterSystems Caché",
   "directories": {
     "test": "test"
diff --git a/src/cls/ClassExplorer/ClassView.cls b/src/cls/ClassExplorer/ClassView.cls
index 24bc574..82f5c97 100644
--- a/src/cls/ClassExplorer/ClassView.cls
+++ b/src/cls/ClassExplorer/ClassView.cls
@@ -94,9 +94,13 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
     set props = ##class(%Dictionary.ClassDefinition).%OpenId("%Dictionary.ClassDefinition")
     for j=1:1:props.Properties.Count() {
         set pname = props.Properties.GetAt(j).Name
-        set:((pname '= "parent")
-             && ('props.Properties.GetAt(j).Private)
-             && ('$IsObject($PROPERTY(classDefinition, pname)))) $PROPERTY(oClass, pname) = $PROPERTY(classDefinition, pname)
+        try {
+            set:((pname '= "parent")
+                && ('props.Properties.GetAt(j).Private)
+                && ('$IsObject($PROPERTY(classDefinition, pname)))) $PROPERTY(oClass, pname) = $PROPERTY(classDefinition, pname)
+        } catch (e) {
+            // Skip private properties that InterSystems may add in any future versions
+        }
     }
     if (oClass.TimeChanged) { set oClass.TimeChanged = $zdatetime(oClass.TimeChanged) }
     if (oClass.TimeCreated) { set oClass.TimeCreated = $zdatetime(oClass.TimeCreated) }
@@ -117,7 +121,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         do oProperties.%DispatchSetProperty(p.Name, oProp)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(p, pname)
+            try {
+                set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(p, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
         if (..classExists(package _ "." _ p.Type)) {
             set oProp.Type = package _ "." _ p.Type
@@ -140,7 +148,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         do oMethods.%DispatchSetProperty(met.Name, oMeth)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:((pname '= "parent") && (pname '= "Implementation")) $PROPERTY(oMeth, pname) = $PROPERTY(met, pname)
+            try {
+                set:((pname '= "parent") && (pname '= "Implementation")) $PROPERTY(oMeth, pname) = $PROPERTY(met, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
     }
 
@@ -153,7 +165,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         set p = classDefinition.Parameters.GetAt(i)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:(pname '= "parent") $PROPERTY(oPar, pname) = $PROPERTY(p, pname)
+            try {
+                set:(pname '= "parent") $PROPERTY(oPar, pname) = $PROPERTY(p, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
         do oParameters.%DispatchSetProperty(p.Name, oPar)
     }
@@ -166,7 +182,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         set q = classDefinition.Queries.GetAt(i)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(q, pname)
+            try {
+                set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(q, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
         do oQueries.%DispatchSetProperty(q.Name, oProp)
     }
@@ -179,7 +199,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         set xd = classDefinition.XDatas.GetAt(i)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:((pname '= "parent") && (pname '= "Object")) $PROPERTY(oProp, pname) = $PROPERTY(xd, pname)
+            try {
+                set:((pname '= "parent") && (pname '= "Object")) $PROPERTY(oProp, pname) = $PROPERTY(xd, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
         do oXDatas.%DispatchSetProperty(xd.Name, oProp)
     }
@@ -192,7 +216,11 @@ ClassMethod fillClassData(oData As %ZEN.proxyObject, className As %String, level
         set ind = classDefinition.Indices.GetAt(i)
         for j=1:1:props.Properties.Count() {
             set pname = props.Properties.GetAt(j).Name
-            set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(ind, pname)
+            try {
+                set:(pname '= "parent") $PROPERTY(oProp, pname) = $PROPERTY(ind, pname)
+            } catch (e) {
+                // Skip private properties that InterSystems may add in any future versions
+            }
         }
         do oIndices.%DispatchSetProperty(ind.Name, oProp)
     }