有哪位大神指導下hypermesh/radioss中接觸分析中出現這個錯誤是什么原因啊

** Problem(s) found while reading line 41 from file:

     C:/Users/win7/Desktop/lianxi/0.fem

  "CONTACT        1   SLIDE               1        0.15"

 This line was interpreted as:

   41:CONTACT, 1, SLIDE, , 1, , 0.15

 *** ERROR # 1000 *** in the input data:

 Incorrect data in field # 4.

  Expected STRING or INTEGER, found  BLANK.