swift - Scene Kit View not showing in window -


i building simulation app side project school paper i'm writing , started building ipad app initially, , later realized needed on osx.

i need way user input values , need scene kit view display animation.

the problem encountering (i didn't have when programming ios) when adding scene kit view in storyboard (as child of main view in viewcontroller) doesn't load. building fine, error message printed out right away: failed set (contentviewcontroller) user defined inspected property on (nswindow): *** -[nskeyedunarchiver decodeobjectforkey:]: cannot decode object of class (scnview)

note using cocoa application template

i hope above understandable , grateful help


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