how do i fix this :
Warning: Tag 'boiler-to-piston-flow' in the container 'steam' is obsolete.
Warning: Tag 'firebox-to-boiler-heat-flow' in the container 'steam' is obsolete.
Warning: Tag 'firebox-to-boiler-heat-flow-idle' in the container 'steam' is obsolete.
Warning: Tag 'firebox-volume' in the container 'steam' is obsolete.
Warning: Tag 'main-reservoir-volume' in the container 'steam' is obsolete.
Warning: Tag 'max-fire-coal-mass' in the container 'steam' is obsolete.
Warning: Tag 'piston-to-atmosphere-flow' in the container 'steam' is obsolete.
Warning: Tag 'westinghouse-volume' in the container 'steam' is obsolete.
??