Predefined mixtures cannot be used in PropsSI

[ibell]

In [1]: import CoolProp

In [2]: CoolProp.CoolProp.PropsSI('Dmolar','P',101325,'T',300,'R410A.mix')
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-2-925dd2f65401> in <module>()
----> 1 CoolProp.CoolProp.PropsSI('Dmolar','P',101325,'T',300,'R410A.mix')

C:\Miniconda\lib\site-packages\coolprop-5.0.2-py2.7-win-amd64.egg\CoolProp\CoolProp.pyd in CoolProp.CoolProp.PropsSI (CoolProp\CoolProp.cpp:14608)()

C:\Miniconda\lib\site-packages\coolprop-5.0.2-py2.7-win-amd64.egg\CoolProp\CoolProp.pyd in CoolProp.CoolProp.PropsSI (CoolProp\CoolProp.cpp:14403)()

C:\Miniconda\lib\site-packages\coolprop-5.0.2-py2.7-win-amd64.egg\CoolProp\CoolProp.pyd in CoolProp.CoolProp.__Props_err2 (CoolProp\CoolProp.cpp:13248)()

ValueError: size of mole fraction vector [1] does not equal that of component vector [2] : PropsSI("Dmolar","P",101325,"T",300,"R410A.mix")