Darkflow -- No module named 'darkflow.cython_utils.cy_yolo_findboxes'

I've succesfully installed darkflow-1.0.0 (https://github.com/thtrieu/darkflow) on the Windows 10 using the pip install . command.

Successfully built darkflow
Installing collected packages: darkflow
  Found existing installation: darkflow 1.0.0
    Uninstalling darkflow-1.0.0:
      Successfully uninstalled darkflow-1.0.0
Successfully installed darkflow-1.0.0

After this, I'm trying to run python flow --h, which gives me following error:

Traceback (most recent call last):
  File "flow", line 4, in <module>
    from darkflow.cli import cliHandler
  File "C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow\darkflow\cli.py", line 3, in <module>
    from .net.build import TFNet
  File "C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow\darkflow\net\build.py", line 7, in <module>
    from .framework import create_framework
  File "C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow\darkflow\net\framework.py", line 1, in <module>
    from . import yolo
  File "C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow\darkflow\net\yolo\__init__.py", line 2, in <module>
    from . import predict
  File "C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow\darkflow\net\yolo\predict.py", line 7, in <module>
    from ...cython_utils.cy_yolo_findboxes import yolo_box_constructor
ModuleNotFoundError: No module named 'darkflow.cython_utils.cy_yolo_findboxes'

So i tried to build the Cython extensions using the python setup.py build_ext --inplace command, which gives me the following error:

(base) C:\Users\filda\Desktop\FIT_VUT\BP\YOLO\YOLO_keras\darkflow-master>python setup.py build_ext --inplace
running build_ext
building 'darkflow.cython_utils.nms' extension
creating build\temp.win-amd64-3.5
creating build\temp.win-amd64-3.5\Release
creating build\temp.win-amd64-3.5\Release\darkflow
creating build\temp.win-amd64-3.5\Release\darkflow\cython_utils
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -IC:\Users\filda\Anaconda3\lib\site-packages\numpy\core\include -IC:\Users\filda\Anaconda3\include -IC:\Users\filda\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.17134.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /Tcdarkflow/cython_utils/nms.c /Fobuild\temp.win-amd64-3.5\Release\darkflow/cython_utils/nms.obj
nms.c
c1: fatal error C1083: Cannot open source file: 'darkflow/cython_utils/nms.c': No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.15.26726\\bin\\HostX64\\x64\\cl.exe' failed with exit status 2

May somebode point me to right direction ?

from Darkflow -- No module named 'darkflow.cython_utils.cy_yolo_findboxes'