I'm using my boss old telerik version, i try to make new View Model in my new solution and i got this error :
SeverityCodeDescriptionProjectFileLineSuppression State
ErrorCS0433The type 'AppointmentDeletedEventArgs' exists in both 'Telerik.Windows.Controls.ScheduleView, Version=2011.2.712.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' and 'Telerik.Windows.Controls.Scheduler, Version=2011.2.712.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7'
In my previous work i dont have any problem but suddenly i got this problem. what happen and how can i fix this?