Butterfly blockmash problom

Hi guys. I have followed the latest butterfly0.0.05 installation guidance (https://github.com/ladybug-tools/butterfly/wiki ) to install blueCFD-Core and butterfly, but the blockmash didn’t work. It said invalid handle.
My bluecore-cfd seemed to work fine.

Windows 7 Ultimate
Rhino6 sr12
Is anyone know what I should do?

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windows 7 was the problem…

re-done everything with win 10 and it works