Thanks for fast respond ,
I changed oDXFExport.OutputFileName = "Output/" + CellDocObj.Cells.Item(1).Name + ".dxf"to
oDXFExport.OutputFileName = CellDocObj.Path + "Output/" + CellDocObj.Cells.Item(1).Name + ".dxf"
it's same error.
Thanks for fast respond ,
I changed oDXFExport.OutputFileName = "Output/" + CellDocObj.Cells.Item(1).Name + ".dxf"to
oDXFExport.OutputFileName = CellDocObj.Path + "Output/" + CellDocObj.Cells.Item(1).Name + ".dxf"
it's same error.