dll missing

[Yousef Oleyaeimotlagh]

>>> import tables

Out: 

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

ImportError                               Traceback (most recent call last)

<ipython-input-1-0a99ad28a088> in <module>

----> 1 import tables

~\AppData\Roaming\Python\Python36\site-packages\tables\__init__.py in <module>

     72         raise ImportError(

     73             'Could not load any of %s, please ensure'

---> 74             ' that it can be found in the system path' % hdf5_dlls)

     75 

     76     # Some PyTables binary distributions place the dependency DLLs in the

ImportError: Could not load any of ['hdf5.dll', 'hdf5dll.dll'], please ensure that it can be found in the system path

I use virtualenvironment in windows 10. Any help is kindly appreciated. sorry for duplication in any point.