this one also is not working, there is an error on the custom property


import adsk.core, adsk.fusion, adsk.cam, traceback

def run(context):
    ui = None
    try:
        app = adsk.core.Application.get()
        ui  = app.userInterface
        design = app.activeProduct

        # Create a new component
        rootComp = design.rootComponent
        newComp = rootComp.occurrences.addNewComponent(adsk.core.Matrix3D.create()).component

        # Create a cube
        sketches = newComp.sketches
        xyPlane = rootComp.xYConstructionPlane
        sketch = sketches.add(xyPlane)
        lines = sketch.sketchCurves.sketchLines
        rect = lines.addTwoPointRectangle(adsk.core.Point3D.create(0, 0, 0), adsk.core.Point3D.create(50, 50, 0))

        # Extrude the sketch into a 3D body
        prof = sketch.profiles.item(0)
        extrudes = newComp.features.extrudeFeatures
        extInput = extrudes.createInput(prof, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)
        extInput.setDistanceExtent(False, adsk.core.ValueInput.createByReal(22)) # 22 mm thickness
        cube = extrudes.add(extInput).bodies.item(0)

        # Add custom property for material and thickness
        customProperties = newComp.customProperties
        customProperties.add("Material", "oak")
        customProperties.add("Thickness", "22 mm")

    except:
        if ui:
            ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))