Error when export to step file

Hi everyone,
I try to export Cylinder shape to step file but it has error. the error in the attachment file

I hope can anyone help me.
thank in advance.

Forum supervisor's picture

Dear Ear,
The problem is reproduced.
I suggest you to register a corresponding issue in Mantis BugTracker - ( pointed to by the 'Resources' page of the portal ( Follow, please the workflow and procedures described in the document 'OCCT Contribution Workflow' (
At the same time as temporary workaround you may use work in Release mode.
When warning dialog box will appear just press 'OK' button. The selected shape will be saved in step format.