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Setup SpectatorView Plugin failed

Hi. I want to test out spectator view for mobile following this tutorial. However, i faced problem to Install OpenCV Contrib for UWP where it show this error:

Error: Building package eigen3:x86-uwp failed with: BUILD_FAILED

C:\git\vcpkg>.\vcpkg install opencv[contrib]:x86-uwp --recurse
The following packages will be built and installed:
* eigen3[core]:x86-uwp
* libjpeg-turbo[core]:x86-uwp
* libpng[core]:x86-uwp
* opengl[core]:x86-uwp
* tiff[core]:x86-uwp
* zlib[core]:x86-uwp
Additional packages (*) will be modified to complete this operation.
Starting package 1/7: eigen3:x86-uwp
Building package eigen3[core]:x86-uwp...
A suitable version of cmake was not found (required v3.11.4). Downloading portable cmake v3.11.4...
Downloading cmake...
Downloading cmake... done.
Extracting cmake...
A suitable version of 7zip was not found (required v18.1.0). Downloading portable 7zip v18.1.0...
Downloading 7zip...
Downloading 7zip... done.
Extracting 7zip...
A suitable version of nuget was not found (required v4.6.2). Downloading portable nuget v4.6.2...
Downloading nuget...
Downloading nuget... done.
Extracting 7zip... done.
Extracting cmake... done.
-- Downloading https://github.com/eigenteam/eigen-git-mirror/archive/3.3.5.tar.gz...
-- Extracting source C:/git/vcpkg/downloads/eigenteam-eigen-git-mirror-3.3.5.tar.gz
-- Using source at C:/git/vcpkg/buildtrees/eigen3/src/3.3.5-dea2ea229a
-- Downloading https://github.com/ninja-build/ninja/releases/download/v1.8.2/ninja-win.zip...
-- Configuring x86-uwp
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:56 (message):
Command failed: ninja;-v
Working Directory: C:/git/vcpkg/buildtrees/eigen3/x86-uwp-rel/vcpkg-parallel-configure
See logs for more information:

Call Stack (most recent call first):
scripts/cmake/vcpkg_configure_cmake.cmake:246 (vcpkg_execute_required_process)
ports/eigen3/portfile.cmake:11 (vcpkg_configure_cmake)
scripts/ports.cmake:71 (include)

Error: Building package eigen3:x86-uwp failed with: BUILD_FAILED
Please ensure you're using the latest portfiles with .\vcpkg update, then
submit an issue at https://github.com/Microsoft/vcpkg/issues including:
Package: eigen3:x86-uwp
Vcpkg version: 0.0.113-nohash

Additionally, attach any relevant sections from the log files above.

Attached is the log from the error. Hope someone can help me to solve this. Thank you :)

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