Now I'm updating someone's UWP project.
I use **Visual Studio 2017** on **windows 10 64bit**.
Building is successful.
But When I run this project, I got an error.

> 
> DEP6200: Bootstrapping failed.Device cannot be found.
>  SmartDeviceException - Deployment failed because no device was
>  detected.
> 
> 
> 

I think, the reason is that I didn't use real windows phone.
So that I wanted to use **windows phone emulator**.
But I don't know `how to add emulator to running option`.
When I created new `UWP project`, I could find emulators which are connect to that project.

Anyone solved this issue?