--- a/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/AbstractSDKManager.java	Mon Aug 30 14:54:10 2010 -0600
+++ b/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/AbstractSDKManager.java	Mon Aug 30 16:39:11 2010 -0500
@@ -318,6 +318,9 @@
 				sdk = SymbianSDKFactory.createInstance(id, 
 						   entry.getEpocRoot(),
 						   osVersion);
+				if (isInSDKList(sdk)) {
+					continue;
+				}
 				((SymbianSDK)sdk).setEnabled(entry.isEnabled());
 				synchronized (sdkList) {
 					sdkList.add(sdk);
@@ -348,6 +351,13 @@
 	}
 
 	/**
+	 * Check whether an SDK already exist in SDK list.
+	 * @param sdk - SDK to be checked
+	 * @return true if SDK already exist in SDK list, false otherwise
+	 */
+	abstract protected boolean isInSDKList(ISymbianSDK sdk);
+
+	/**
 	 * Tell whether EPOCROOT can be changed for a given ISymbianSDK
 	 * @return flag
 	 */

--- a/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/SDKManager.java	Mon Aug 30 14:54:10 2010 -0600
+++ b/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/SDKManager.java	Mon Aug 30 16:39:11 2010 -0500
@@ -97,6 +97,9 @@
 				for (Iterator iter = devices.iterator(); iter.hasNext();) {
 					SymbianSDK sdk = new SymbianSDK((DeviceType) iter.next());
 					sdk.addSupportedFeature(ISymbianSDKFeatures.IS_FROM_DEVICES_XML);
+					if (isInSDKList(sdk)) {
+						continue;
+					}
 					sdkList.add(sdk);
 				}
 			}
@@ -484,7 +487,8 @@
 		}
 	}
 
-	private boolean isInSDKList(ISymbianSDK sdk) {
+	@Override
+	protected boolean isInSDKList(ISymbianSDK sdk) {
 		for (ISymbianSDK entry : sdkList) {
 			if (entry.getEPOCROOT().equalsIgnoreCase(sdk.getEPOCROOT())) {
 				return true;

--- a/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/SDKManagerRaptorOnly.java	Mon Aug 30 14:54:10 2010 -0600
+++ b/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/sdk/core/model/SDKManagerRaptorOnly.java	Mon Aug 30 16:39:11 2010 -0500
@@ -135,7 +135,17 @@
 	public void updateSDK(ISymbianSDK sdkId) {
 		updateCarbideSDKCache();
 	}
-	
+
+	@Override
+	protected boolean isInSDKList(ISymbianSDK sdk) {
+		for (ISymbianSDK entry : sdkList) {
+			if (entry.getEPOCROOT().equalsIgnoreCase(sdk.getEPOCROOT())) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	@Override
 	protected boolean isEPOCRootFixed() {
 		return false;