Ho importato un progetto realizzato con la versione 9, tutto è andato in porto ma quando tento di impostare la parte responsive il programma da errore, qui sotto riportato, e si chiude.

Tra l'altro è possibile vedere il progetto nell'anteprima anche in responsive.

Che fare? 

Grazie in anticipo

13/10/2015 10:44:55 [EXCEPTION] Riferimento a un oggetto non impostato su un\'istanza di oggetto. WebSiteX5 in (Object ) in . .(Object ) in ..(Object , EventArgs ) in ..(Boolean , Boolean ) in ..(Object , EventArgs ) in System.Windows.Forms.Control.OnResize(EventArgs e) in System.Windows.Forms.UserControl.OnResize(EventArgs e) in System.Windows.Forms.Control.OnSizeChanged(EventArgs e) in System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32 height, Int32 clientWidth, Int32 clientHeight) in System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32 height) in System.Windows.Forms.Control.SetBoundsCore(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) in System.Windows.Forms.Control.ScaleControl(SizeF factor, BoundsSpecified specified) in System.Windows.Forms.ScrollableControl.ScaleControl(SizeF factor, BoundsSpecified specified) in System.Windows.Forms.Control.ScaleControl(SizeF includedFactor, SizeF excludedFactor, Control requestingControl) in System.Windows.Forms.ContainerControl.Scale(SizeF includedFactor, SizeF excludedFactor, Control requestingControl) in System.Windows.Forms.ContainerControl.PerformAutoScale(Boolean includedBounds, Boolean excludedBounds) in System.Windows.Forms.ContainerControl.PerformNeededAutoScaleOnLayout() in System.Windows.Forms.ContainerControl.OnLayoutResuming(Boolean performLayout) in System.Windows.Forms.Control.ResumeLayout(Boolean performLayout) in (Object , Boolean ) in . .(Object , Boolean ) in ..() in ...ctor() in . .(PaneEnum ) in ..( , PaneEnum ) in ..(Object , ) in (Object , Object , ) in ..(Object , Object , ) in ..(PaneEnum ) in ..(Object , MouseEventArgs ) in (Object , Object , MouseEventArgs ) in ..(Object , Object , MouseEventArgs ) in ..(Object , MouseEventArgs ) in System.Windows.Forms.Control.OnMouseUp(MouseEventArgs e) in System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) in System.Windows.Forms.Control.WndProc(Message& m) in System.Windows.Forms.Label.WndProc(Message& m) in (Object , Message& ) in ..(Object , Message& ) in ..WndProc(Message& m) in System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) in System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 13/10/2015 10:31:54 [INFO] wizTemplateStyles 13/10/2015 10:30:44 [INFO] Saved! 13/10/2015 10:30:44 [INFO] Saving Metadata... 13/10/2015 10:30:41 [INFO] ---> http://127.0.0.1:8080/home.html 13/10/2015 10:30:32 [INFO] wizTemplateSectionsStyles 13/10/2015 10:30:29 [INFO] wizTemplateStyles 13/10/2015 10:30:28 [INFO] wizGeneralSettings 13/10/2015 10:30:24 [INFO] wizPlanWebsite 13/10/2015 10:30:09 [INFO] Waiting 7 Threads 13/10/2015 10:30:09 [INFO] 0 Page 152 - End 14 13/10/2015 10:30:09 [INFO] Page 152 - Ending... 14 13/10/2015 10:30:09 [INFO] Change time: 152 2015-10-13 12:30:09 13/10/2015 10:30:09 [INFO] 99 Page 143 - End 10 13/10/2015 10:30:09 [INFO] Page 143 - Ending... 10 13/10/2015 10:30:09 [INFO] Change time: 143 2015-10-13 12:30:09 13/10/2015 10:30:09 [INFO] 99 Page 4 - End 18 13/10/2015 10:30:09 [INFO] 99 Page 144 - End 8 13/10/2015 10:30:09 [INFO] Page 4 - Ending... 18 13/10/2015 10:30:09 [INFO] Page 144 - Ending... 8 13/10/2015 10:30:09 [INFO] Change time: 144 2015-10-13 12:30:09 13/10/2015 10:30:09 [INFO] 99 Page -4 - End 5 13/10/2015 10:30:09 [INFO] Page -4 - Ending... 5 13/10/2015 10:30:09 [INFO] 99 Page 145 - End 13 13/10/2015 10:30:09 [INFO] Page 145 - Ending... 13 13/10/2015 10:30:09 [INFO] 99 Page