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Question by SpiralConDave · Oct 18, 2017 at 05:16 AM · buildvisual studiowindows 10

Why won't 2017.2 and VS build at all (HoloLens)

Got 2017.2.0f3. Updated to 'Fall Creator Update'. Fresh install of VS 2017 Community

Empty project. Empty scene except for camera. Set Build settings for HoloLens.

Unity builds fine.

Open SLN file in VS 2017. 1000 errors, most like this:

1>D:\Unity\20172Test\App\20172Test\Properties\AssemblyInfo.cs(9,32,9,34): error CS0518: Predefined type 'System.String' is not defined or imported

Seriously. Everything inlcludes System and all the requisite 'usings'. Googling shows people having this type of issue since 2007, not in Unity.

Probably missing something obvious, but it's killing me

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avatar image SpiralConDave · Oct 18, 2017 at 05:40 PM 0
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More info: I backed my empty project down to 2017.2b2 (Beta 2) and it DID BUILD. And it RUNS on the HoloLens. So 2017.2.0f3 DOES NOT WORK #Unity WTAF? Did you not test this?

avatar image SpiralConDave · Oct 18, 2017 at 05:46 PM 0
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More more info: I then loaded my now-working-in-B2 project into 2017.2.0f3, build, and guess what, it builds and runs. So SOMETHING about the default state of a fresh install of .2.0f3 and VS 15.4 doesn't work, but building from an earlier version and then importing to current version may fix it.

avatar image ariese · Oct 18, 2017 at 06:03 PM 0
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Not sure if this will help, but I am using Unity 2017.1.1f and Visual Studio version 15.0.0 and it builds. I couldn't get VS 15.4 to work with any versions of unity on the hololens.

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Answer by SpiralConDave · Oct 19, 2017 at 02:17 AM

Maybe this: In Visual Studio, Tools Menu/NuGet Package Manager/Settings. Make sure the top 2 boxes are checked to allow getting of missing packages on build.

I still call Foul that this is not on by default, and that something as basic as System is not just simply there, how can it be missing?

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