Cannot knit sheets together (parting lines & parting surface OK)

Hello,

I am trying to create a mold for a part I imported as a .igs file. I created the parting line, parting surface, but get an error when tring to use the Tooling Split fuction, the error reads: "cannot knit sheets together"

I've read this, but I guess this is not the same problem.

https://forum.solidworks.com/thread/58126

http://www.javelin-tech.com/blog/2012/06/complex-mold-split/

https://forum.solidworks.com/thread/68374

Please find here my part :

http://dfiles.eu/files/s0s74ixpb

Any assistance would be greatly appreciated!


Thanks


SolidworksPlastics And Mold Design