Hello everyone, i want to create a circular wall on revit but i receive an error message. can you help me please.
When you create a wall in Revit using a circle, it actually creates 2 half-circles.
If you split your circle in the midpoint, it works:
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Check the units of the Revit file, are you working in millimeters or meters?
millimeters
Then you need to adapt your inputs 
a radius of 10mm is definitely too small if the wall is, for example, 200 mm
it worked thank you so much