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In my command I programmed to get a spline, existing solid and polylines form their layers automatically.
Then the solid is being erased and the spline and polylines are used to make a new solid.
With two polylines it works well. But when I have three polylines this message appears in the command box:
Open profiles are not supported in multi profile sweeping
And I also get an error message for the Solid3d.CreateLoftedSolid method.
Anybody knows how to handle the message and solve the problem?
(PS: When I select the entities by prompt it works with three profiles)