c# - MVC4 EF5 My Context won't show up when I'm creating a controller -

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my context shows when entity framework 6.1.3 installed since scaffolding isn't supported in entity framework 6 had downgrade version 5.0.0. when try create new controller context isn't listed in drop down list in data context class:

is sort of bug ? image here

what's more surprising works on copied version of same solution.

i fixed rebuilding solution, reinstalling entity framework 5.0.0 manually type in context data context list when adding controller.


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