Can't deploy to HoloLens emulator

Question

Just created default project Holographic DirectX11 App (Universal Windows) in VS2015 Update 2 with HoloLens emulator installed and hit F5.

HoloLens emulator starts loading, but at some point

The emulator is unable to connect to the device operating system: The emulator is unable to determine the host IP address, which is used to communicate with the guest virtual machine. Some functionality might be disabled.

I can start emulator from Hyper-V Manager and connect to it, but the screen is not responding to mouse clicks and stuck with start menu (same picture in emulator window if I start it from VS2015, but with this error message at the beginning):

Any thoughts?

Answer 1

Ok, some "standard" clean up did the thing:

1. Open Hyper-V Manager
2. Remove all Windows Phone and HoloLens virtual machines (they will be recreated later)
3. Click on Virtual Switch Manager... link in the Actions panel on the right and remove all virtual switches
4. Reboot (I did it "just in case", may not be required)
5. Open any HoloLens project in VS2015 and hit F5 - this should re-created new virtual machine for HoloLens and successfully deploy the app.

* Update *

It seems there is a bit more appropriate place for questions like this in the future - official Questions and Answers forum.

* Update 2 *

It may be related, so I'll just leave this link here (It did help me with very similar problem with Windows Phone emulator in the past).

Quoting the important part from the link above:

Here is my solution and it work well for me:

1. open hyper-v as admin, open virtual switch manager, create a new virtual switch with "Internal", use the default name or any name you want, and save

2. open virtual switch manager again, and you will see the "Windows Phone Emulator Internal Switch", copy the name "Windows Phone Emulator Internal Switch" and change this switch to another name(whatever you want, I just add "1" to the following string like: Windows Phone Emulator Internal Switch 1), and open your new added switch in the step 1, rename it to "Windows Phone Emulator Internal Switch" (don't change or missing any string), save

3. open virtual switch manager again, and now you can delete the old "Windows Phone Emulator Internal Switch 1" switch

4. open system network settings, adapter settings, you will see "vEthernet (Windows Phone Emulator Internal Switch)" is enable now, and the old one "vEthernet (New Virtual Switch)" is disabled which will not be used.

in VS, just run and deploy to a emulator, have fun.

Hope this helps.

Answer 2

I fixed the

The emulator is unable to connect to the device operating system: The emulator is unable to determine the host IP address, which is used to communicate with the guest virtual machine. Some functionality might be disabled.

problem by:

1. Opening the Hyper-V Manager
2. Opening the virtual switch manager
3. Selecting "Windows Phone Emulator Internal Switch"
4. Changing connection type from "Private network" to "Internal network"