SurfaceTraction()

[Stepan Lomov]

I get an error message for:

mdb.models['beam'].SurfaceTraction(name='Load-1',    
    createStepName='Bending',
    region = region1, magnitude=1.0,
    directionVector=((0,0,0),(0,-1,0)))

The error message:

TypeError: not all required arguments specified; expected 10, got 0

Cannot make heads o tail of it, please help!

region1 was constructed without errors with

region1 = regionToolset.Region(faces = InstanceBeam.faces.findAt(((0, 0, 10.0), )