求助，ACTIVITY COEFFICIENT MODEL GMXSH HAS MISSING PARAMETERS:

MusicManCoCo

换了好多次物性方法，还是有错误~
ACTIVITY COEFFICIENT MODEL GMXSH HAS MISSING PARAMETERS:
      GMSHVL AND VLCVT1 (DATA SET 1) MISSING FOR COMPONENT DMB
      VLCVT1 NEEDED TO CALCULATE LIQUID MOLAR VOLUME AT 25C WHEN GMSHVL
      NOT INPUTTED BY USER

  ****PROPERTY PARAMETER ERROR
      ERRORS ENCOUNTERED IN CALCULATION OF LIQUID MIXTURE PROPS USING
      OPTION SET GRAYSON FOR PHIMX,DPHIMX,HMX,DHMX

! Calculations stopped because of missing  property parameters