sklearn_crfsuite ImportError：DLL加载失败：找不到指定的模块

Question

我已经在Windows 10上使用pip install sklearn-crfsuite安装了sklearn-crfsuite。我的python是v 3.5。 要导入sklearn_crfsuite时出现以下错误：

    File "<stdin>", line 1, in <module> File 
    "C:\Users\...\AppData\Local\Programs\Python\Python35\lib\site- 
    packages\sklearn_crfsuite\__init__.py", line 2, in <module> from 
    .estimator import CRF File 
    "C:\Users\...\AppData\Local\Programs\Python\Python35\lib\site- 
    packages\sklearn_crfsuite\estimator.py", line 6, in <module> import 
    pycrfsuite File 
    "C:\Users\...\AppData\Local\Programs\Python\Python35\lib\site- 
    packages\pycrfsuite\__init__.py", line 2, in <module> from ._pycrfsuite 
    import * ImportError: DLL load failed: The specified module could not be 
    found.

我的Windows / System32中有msvcp_win.dll，msvcp60.dll和msvcp100.dll文件。 有什么问题吗？