Checker Size Tool 1.2.0 for Maya (maya script)

// Error: # 1. First select any faces or any object and click the Get checker size button. The checker size is now stored.
//
// Error: Line 1.0: invalid directive //
// Error: combined_mesh=cmds.polyUnite(ch=True)
//
// Error: Line 329.45: Invalid use of Maya object "True". //
// Error: cmds.delete(combined_mesh[0])
//
// Error: Line 331.37: Invalid use of Maya object "combined_mesh[0]". //
// Error: cmds.progressBar(progressControl, edit=True, pr=0)
//
// Error: Line 333.41: Invalid use of Maya object "progressControl". //