c# - "Value cannot be null. Parameter name: instance" error when trying to open telerik report -


In my solution I have telleric reports and when trying to open them in a Visual Studio 2010 designer, Error getting: 

  Value can not be empty Name of the parameter: System.ComponentModel.TypeDescriptor.AddAttributes (Object instance, attribute [] attributes) on System column stack. (IComponent Component, String Name, IContainer Container ToAAddTo) on System.ComponentModel.Design.DesignerHost.PerformAdd (IComponent Component, String Name) on System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent (Type Component Type , String name) on system. ComuneModel.Design Secretion.Designalization Manager.Creative Instances (Type Type, Iclon Double, String Name, Boolean Adontaneir) System. ComuneModel.Design Serialization. DesignerSyilization Manager.System Component Modell.Design Sairiylaijheshn Kijijnr Srtialaijheshn Manejrkkret type instance type, Aikaluleshn Arguments, String name, Boolean Adtoantenr) on System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize (IDesignerSerializationManager manager, CodeTypeDeclaration announced) Microsoft.VisualStudio.Design.Serialization.CodeDom. Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLo on System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad (IDesignerSerializationManager Manager) on VSCodeDomDesignerLoader.PerformLoad (IDesignerSerializationManager SerializationManager) adCompleted (Int32 fReload)   
 When I run the solution, they are visible and they are good. Therefore, the only problem is the designer and this error.  
 Thank you in advance.  
  
 
 
 I reinstalled the tele -recoding reporting component, deleted it and then added DLL and now working fine Used to be.

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