Migrating WPF 3.5 to 4.5 framework

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XAML

WPF

Hi All,

I would like to convert application wpf 3.5 to 4.5 frame work using visual studio.
Application is building successfully but( Xaml) design it showing error as below.
Thanks in advance

System.ArgumentException
'{DependencyProperty.UnsetValue}' is not a valid value for the 'System.Windows.Controls.Image.Source' property on a Setter.

Server stack trace: 
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.WaitForCompletion(NestedCallContext nestedCallContext, BlockingCall call, WaitHandle timeoutSignal)