Recently i have migrated my WPF project from .NET4.0 to .NET 4.5 and i am facing System.Windows.Interactivity issue which was otherwise working fine.
Error : Could not load file or assembly 'System.Windows.Interactivity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
来源：https://stackoverflow.com/questions/39929394/system-windows-interactivity-for-net-4-5-wpf-project-for-net-4-5-wpf-project