请问回归的时候出现RKTZRA AND ITS DEFAULT ZC (DATA SET 1) MISSING FOR COMPONENT

cogiorough

请问运行的时候出现下面这些要怎么解决？说缺少RKTZRA，但找不到在哪。。
<< Loading Simulation Engine 23:20:12 Fri Mar 27, 2015>>



->Processing input specifications ...

  *   WARNING IN PHYSICAL PROPERTY SYSTEM
      MW MISSING FOR COMPONENT H20


->Data Regression begins ...



BEGIN CASE R-1                                     TIME =      0.04
STARTING POINT                                          TIME:     0.05
      VAPOR PRESSURE MODEL PL0XANT HAS MISSING PARAMETERS:
      PLXANT/1ST ELEMENT (DATA SET 1) MISSING FOR COMPONENT H20

      EQUATION OF STATE MODEL ESRK0 HAS MISSING PARAMETERS:
      TC (DATA SET 1) MISSING FOR COMPONENT H20

      PC (DATA SET 1) MISSING FOR COMPONENT H20

      SPECIFIC VOLUME MODEL VL0RKT HAS MISSING PARAMETERS:
      TC (DATA SET 1) MISSING FOR COMPONENT H20

      PC (DATA SET 1) MISSING FOR COMPONENT H20

      RKTZRA AND ITS DEFAULT ZC (DATA SET 1) MISSING FOR COMPONENT H20

  ****PROPERTY PARAMETER ERROR
      ERRORS ENCOUNTERED IN CALCULATION OF LIQUID MIXTURE FUGACITY COEFFICIENTS
      USING OPTION SET VANL-RK FOR PHIMX

! Calculations stopped because of missing  property parameters