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Issues with building Hololens Emulator
Tried doing the very basic Holograms 101E tutorial however I am unable to get visual studio to build the Emulator. Since I couldnt get the tutorial files to work i thought about trying testing the process with a simply box but I am still getting the same 2 errors and cant seem to get rid of them.
Severity Code Description Project File Line Suppression State
Error CS0012 The type 'CoreApplicationView' is defined in an assembly that is not referenced. You must add a reference to assembly 'Windows, Version=255.255.255.255, Culture=neutral, PublicKeyToken=null, ContentType=WindowsRuntime'. holotest C:\Users\jared.turner\Desktop\holotest\App\holotest\App.cs 34 Active
Severity Code Description Project File Line Suppression State
Error CS0012 The type 'CoreWindow' is defined in an assembly that is not referenced. You must add a reference to assembly 'Windows, Version=255.255.255.255, Culture=neutral, PublicKeyToken=null, ContentType=WindowsRuntime'. holotest C:\Users\jared.turner\Desktop\holotest\App\holotest\App.cs 58 Active
Any ideas or help would be greatly appreciated.
Best Answers
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Jimbohalo10
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You are missing an entry Microsoft.NETCore.UniversalWindowsPlatform from Project.json. This is probably because Visual Studio was installed without the Toolkit and Windows 10 UWP SDK see VS 2015 Update 3 issues
The pictures show how VS 2105 needs to be setup to support HoloLens
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OptionsJimbohalo10
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@AvionicHologram Yes! that's why I mentioned this. So often our own computers are better than work!.
Even if the work computer supported BIOS setting, somehow doubt that IT would be willing to change this as it would be non-standard ?? and because they lease the computers you cannot get another type of computer!!.
Other developers have told similar stories and there is problem where company Windows Group policy settings were stopping working using VS Enterprise.
Took developer the lot to their home computer and it works on Visual Studio Community. Some companies are so inefficient.The old IT directors line "Employees are taking our computers home!. NO! Sir they are bringing THEIR computers into work!"
5
Answers
You are missing an entry Microsoft.NETCore.UniversalWindowsPlatform from Project.json. This is probably because Visual Studio was installed without the Toolkit and Windows 10 UWP SDK see VS 2015 Update 3 issues
The pictures show how VS 2105 needs to be setup to support HoloLens
I checked out your link and made sure that the toolkit and windows 10 uwp sdk was installed but the same error still occurs. Now i have both VS 2015 Update 3 and VS 2017 installed could that be causing the machine to be confused? I found that if i delete those 2 lines of code that the emulator opens but then the following error appears whenever the origami (anything else as well) app tries to launch
"Unable to activate Windows Store app "Origami_sx6pycx103f58'. The activation request failed with error 'Access is denied'.
I have had BIG problems with VS 2015 and VS 2017 installed on the same Windows 10. My fix was to uninstall them both and Unity 5.5F3.
Then read https://developer.microsoft.com/en-us/windows/mixed-reality/install_the_tools and install VS 2015 first then HoloLens emulator
Then install Unity 5.5.3 from Unity download archive
Login as Administrator Run VS 2015 using "Run as Administrator"
New Project template -> Visual C++ -> Universal Windows -> Holographic Template. Click ok. When the template solution appears select Holographic 10.0.14393 emulator, x86,Debug. Build the solution and deploy.
For the first time HoloLens Emulator will request elevated priority.
This installs the Hyper-V into Windows 10 Professional. If anything fails then the emulator in not installed correctly and you may need to go into your PC hardware.
In the BIOS, the following features must be supported and enabled:
Hardware-assisted virtualization
Second Level Address Translation (SLAT)
Hardware-based Data Execution Prevention (DEP)
In Windows 10 Pro
Control Panel -> Programs -> Programs and Features -> Turn Windows Features on or off -> ensure that "Hyper-V" is selected for the Emulator installation to be successful.
Now you can start Unity 5.5.3 start the HoloLens Academy 101E https://developer.microsoft.com/en-us/windows/mixed-reality/holograms_101e
and download and decompress the files
and Open the project in Unity and follow the tutorial given in the link above
Thank you i am going to give this a go. I will let you know how it goes and i greatly appreciate your input. (I read both links before but will do so again to make sure i didnt jack something else up). Thank you for your time.
sigh back to the drawing board. downloaded Unity 5.5.3 and it failed to build saying catastrophic error. Downloaded the newest unity which apparantly came out yesterday no trouble building however when i try to open the file in visual studio the project needs a newer version of visual studio and directs me to VS 2017 download :{ going to uninstall VS15 before I download VS17 and try from there
@Jimbohalo10 ok update. no matter what i try on the work computer i am just getting constant errors. Our IT guy says he did a check and my computer doesn't support the following:
Second Level Address Translation (SLAT)
Hardware-based Data Execution Prevention (DEP)
I went home and decided to test on my 6month comp (one at work is at least 5). Downloaded VS 2015 and unity 5.6.1. VS said it needed an updated version to play the unity file
Downloaded 2017 (kept vs 2015 installed) and it ran perfectly without a hitch. So I am guessing that those 2 options are preventing my computer at work from running the hologram correctly?
Going to try one last VS/Unity purge and reinstall and see but I don't have much faith. Thank you for your time.
@AvionicHologram Yes! that's why I mentioned this. So often our own computers are better than work!.
Even if the work computer supported BIOS setting, somehow doubt that IT would be willing to change this as it would be non-standard ?? and because they lease the computers you cannot get another type of computer!!.
Other developers have told similar stories and there is problem where company Windows Group policy settings were stopping working using VS Enterprise.
Took developer the lot to their home computer and it works on Visual Studio Community. Some companies are so inefficient.
The old IT directors line "Employees are taking our computers home!. NO! Sir they are bringing THEIR computers into work!"
I am also having the same error as OP. I am running Visual Studio 2017 Update 3.
I have ticked UWP when installing Visual Studio 2017 but it wont work. Is there any suggestions for me to get it work. I am stuck with running the Emulator since 3 weeks already.
@riazmuns Hey Man, have you checked your bios settings that @Jimbohalo10 mentioned
"This installs the Hyper-V into Windows 10 Professional. If anything fails then the emulator in not installed correctly and you may need to go into your PC hardware.
In the BIOS, the following features must be supported and enabled:
Hardware-assisted virtualization
Second Level Address Translation (SLAT)
Hardware-based Data Execution Prevention (DEP)
In Windows 10 Pro
Control Panel -> Programs -> Programs and Features -> Turn Windows Features on or off -> ensure that "Hyper-V" is selected for the Emulator installation to be successful."
Once I got a computer with the proper bios it worked perfectly. I was also getting that on just the Emulator, are you getting it when you deploy on the emulator, HoloLens or both?
Hey , I am getting that error in both emulator and hololens. What are the steps of installation did you follow?
I first installed VS 2017 (ticked UWP and Game Support)
and when i build, it wont built (once if it gets built, it will deploy to any platform, even 2D apps wont work)
Help me plz!!
@riazmuns I simply followed @Jimbohalo10 instructions in the above post "I have had BIG problems with VS 2015 and VS 2017 installed on the same Windows 10. My fix was to uninstall them both and Unity 5.5F3.
Then read https://developer.microsoft.com/en-us/windows/mixed-reality/install_the_tools and install VS 2015 first then HoloLens emulator
Then install Unity 5.5.3 from Unity download archive
Login as Administrator Run VS 2015 using "Run as Administrator"
New Project template -> Visual C++ -> Universal Windows -> Holographic Template. Click ok. When the template solution appears select Holographic 10.0.14393 emulator, x86,Debug. Build the solution and deploy.
For the first time HoloLens Emulator will request elevated priority.
This installs the Hyper-V into Windows 10 Professional. If anything fails then the emulator in not installed correctly and you may need to go into your PC hardware.
In the BIOS, the following features must be supported and enabled:
Hardware-assisted virtualization
Second Level Address Translation (SLAT)
Hardware-based Data Execution Prevention (DEP)
In Windows 10 Pro
Control Panel -> Programs -> Programs and Features -> Turn Windows Features on or off -> ensure that "Hyper-V" is selected for the Emulator installation to be successful.
Now you can start Unity 5.5.3 start the HoloLens Academy 101E https://developer.microsoft.com/en-us/windows/mixed-reality/holograms_101e
and download and decompress the files
and Open the project in Unity and follow the tutorial given in the link above
"