backend.ai 설치 시 에러 발생

cmd 창에서 pip install -U backend.ai-client==19.03.2 입력 시, 잘 진행되다가 아래와 같이 에러가 발생하고 설치가 안되네요

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Building wheels for collected packages: multidict

  Building wheel for multidict (PEP 517) ... error

  ERROR: Command errored out with exit status 1:

   command: 'C:\ProgramData\Miniconda3\python.exe' 'C:\ProgramData\Miniconda3\lib\site-packages\pip\_vendor\pep517\in_process\_in_process.py' build_wheel 'C:\Users\rheeh\AppData\Local\Temp\tmpqn5_snyt'

       cwd: C:\Users\rheeh\AppData\Local\Temp\pip-install-8z643arz\multidict_b65ea9a8b4244633981ffcb13708283a

  Complete output (41 lines):

  **********************

  * Accellerated build *

  **********************

  running bdist_wheel

  running build

  running build_py

  creating build

  creating build\lib.win-amd64-3.9

  creating build\lib.win-amd64-3.9\multidict

  copying multidict\_abc.py -> build\lib.win-amd64-3.9\multidict

  copying multidict\_compat.py -> build\lib.win-amd64-3.9\multidict

  copying multidict\_multidict_base.py -> build\lib.win-amd64-3.9\multidict

  copying multidict\_multidict_py.py -> build\lib.win-amd64-3.9\multidict

  copying multidict\__init__.py -> build\lib.win-amd64-3.9\multidict

  running egg_info

  writing multidict.egg-info\PKG-INFO

  writing dependency_links to multidict.egg-info\dependency_links.txt

  writing top-level names to multidict.egg-info\top_level.txt

  reading manifest file 'multidict.egg-info\SOURCES.txt'

  reading manifest template 'MANIFEST.in'

  warning: no previously-included files matching '*.pyc' found anywhere in distribution

  warning: no previously-included files found matching 'multidict\_multidict.html'

  warning: no previously-included files found matching 'multidict\*.so'

  warning: no previously-included files found matching 'multidict\*.pyd'

  warning: no previously-included files found matching 'multidict\*.pyd'

  no previously-included directories found matching 'docs\_build'

  adding license file 'LICENSE'

  writing manifest file 'multidict.egg-info\SOURCES.txt'

  copying multidict\__init__.pyi -> build\lib.win-amd64-3.9\multidict

  copying multidict\_multidict.c -> build\lib.win-amd64-3.9\multidict

  copying multidict\py.typed -> build\lib.win-amd64-3.9\multidict

  creating build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\defs.h -> build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\dict.h -> build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\istr.h -> build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\iter.h -> build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\pair_list.h -> build\lib.win-amd64-3.9\multidict\_multilib

  copying multidict\_multilib\views.h -> build\lib.win-amd64-3.9\multidict\_multilib

  running build_ext

  building 'multidict._multidict' extension

  error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/

  ----------------------------------------

  ERROR: Failed building wheel for multidict

Failed to build multidict

ERROR: Could not build wheels for multidict which use PEP 517 and cannot be installed directly

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