我正在尝试使用Poetry框架在Windows笔记本电脑上安装RASA，并从源代码构建。使用pip工具无法帮助我安装Tensorflow，而Tensorflow是与RASA一起安装的必备组件。
以下是我已经完成的步骤:
$ curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
$ git clone https://github.com/RasaHQ/rasa.git
$ cd rasa
$ poetry install
在安装过程中，到达安装ujson这一步时发生了以下情况，导致安装停止：
Collecting ujson
Using cached ujson-2.0.3.tar.gz (7.1 MB)
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Installing backend dependencies: started
Installing backend dependencies: finished with status 'done'
Preparing wheel metadata: started
Preparing wheel metadata: finished with status 'done'
Building wheels for collected packages: ujson
Building wheel for ujson (PEP 517): started
Building wheel for ujson (PEP 517): finished with status 'error'
ERROR: Command errored out with exit status 1:
command: 'c:\users\claudiu\appdata\local\programs\python\python38\python.exe' 'c:\users\claudiu\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\claudiu\AppData\Local\Temp\tmp3514zx41'
cwd: C:\Users\claudiu\AppData\Local\Temp\pip-install-2qy6btub\ujson
Complete output (16 lines):
running bdist_wheel
running build
running build_ext
building 'ujson' extension
creating build
creating build\temp.win-amd64-3.8
creating build\temp.win-amd64-3.8\Release
creating build\temp.win-amd64-3.8\Release\deps
creating build\temp.win-amd64-3.8\Release\deps\double-conversion
creating build\temp.win-amd64-3.8\Release\deps\double-conversion\double-conversion
creating build\temp.win-amd64-3.8\Release\lib
creating build\temp.win-amd64-3.8\Release\python
C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.16.27023\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -I./python -I./lib -I./deps/double-conversion/double-conversion -Ic:\users\claudiu\appdata\local\programs\python\python38\include -Ic:\users\claudiu\appdata\local\programs\python\python38\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.16.27023\include" /EHsc /Tp./deps/double-conversion/double-conversion\bignum-dtoa.cc /Fobuild\temp.win-amd64-3.8\Release\./deps/double-conversion/double-conversion\bignum-dtoa.obj -D_GNU_SOURCE
bignum-dtoa.cc
./deps/double-conversion/double-conversion\bignum-dtoa.cc(28): fatal error C1083: Cannot open include file: 'math.h': No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC\\Tools\\MSVC\\14.16.27023\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2
----------------------------------------
ERROR: Failed building wheel for ujson
Failed to build ujson
ERROR: Could not build wheels for ujson which use PEP 517 and cannot be installed directly
我可以简单地安装Anaconda并以这种方式完成（tensorflow也是这样工作的），但我想要构建的项目需要能够在任何时候在Anaconda之外运行。
有人能帮我吗？ 顺便说一下，我已经安装了最新的Microsoft Visual C++和构建工具。