close LabVIEW => start LV new => open a new VI => place the 'DAQmx Base Read.vi' on the blockdiagramm => click in browse 'unopend Sub VIs' => look for the 'Check Data Size.vi' => double click on this VI => Save as: 'Check Data Size 1'
If you start your application you dont' get error now.
Regards,
Wolfgang Z.