[Bug 12200] New: [Regression] error message in TREPCAD on project creation

http://bugs.winehq.org/show_bug.cgi?id=12200

Summary: [Regression] error message in TREPCAD on project
                    creation
           Product: Wine
           Version: 0.9.58.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=11607)
 --> (http://bugs.winehq.org/attachment.cgi?id=11607)
Screenshot of the error message

When starting TREPCAD 3.4.0, before the user can create a new project, there
pops up an error message. When choosing to create a new stair anyways, the
program is usable as before this regression occured. This bug showed in the
same way with 0.9.51. TREPCAD worked fine with 0.9.57.