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Upgrade to Infragistics 16.1 failed

I triled to upgrade my infragistics version from 12.1 to 16.1 recently. for that i have installed version utility and tried upgrading, bit shows the fillowing error

08:18:59: Updating Infragistics2.Win.SupportDialogs.v12.1 (Version not found) to new reference Infragistics4.Win.SupportDialogs.v16.1. Version 16.1.20161.1000
08:18:59: No matching assembly located in available assemblies Infragistics2.Win.UltraChart.v12.1.Design
08:18:59: at Infragistics.VersionUtilitySupport.Core.Product.AssemblyXmlFile.ThrowExceptionWhenAssemblyCouldNotBeFound(String assemblyName, Boolean checkAdditionalMessage)
at Infragistics.VersionUtilitySupport.Core.Product.AssemblyXmlFile.LocateNewAssembliesNodeforCurrentAssembly(String assemblyName)
at Infragistics.VersionUtilitySupport.Core.File.Types.ProjectFile.Upgrade(String rootDirectory)

can any one help me to sort out this issue!!!