Problem with Using TacsBuilder for Grillage Optimization in TACS

[MohdAhmet]

I am working on a structural optimization project for a grillage model (bulk carrier hatch cover) using TACS with OpenMDAO. The objective is to minimize mass while satisfying yield stress and deflection constraints. I closely followed the example scripts provided in the TACS documentation as follows:

Initialize TACS builder

class PlateModel(Multipoint):
def setup(self):
struct_builder = TacsBuilder(
mesh_file=bdf_file,
assembler_setup=None,
element_callback=elem_callback,
problem_setup=problem_setup
)
struct_builder.initialize(self.comm)

but encountered the following error during execution:

Opt.py", line 62, in
struct_builder = TacsBuilder(
TypeError: init() got an unexpected keyword argument 'mesh_file'
mdolabuser@d007da2d526e:~/repos/tacs/examples/SCB/GrillageOpt$

My model is fully defined in the .dat file and verified independantly as well before trying to run the optimization.
The assembler is initilaized without arguments for this reason.

could you please suggest what is the best course of action? I have been reseaching for one week in the documentation to solve this error but I couldn't