请各位大侠帮我看一下这个ibis模型怎么了

huzhongmoshui

请各位大侠帮我看一下这个ibis模型怎么了，这是我从TI官网上下载的，在编译的时候报错：
4 Y- m4 a% Q* @5 }ERROR - Model Model67: The [Rising Waveform]
$ j2 x, o7 n  |8 T2 t# R      with [R_fixture]=50 Ohms and [V_fixture]=0V
: O( M9 A! n0 p: W( t      has TYP column DC endpoints of  0.00V and  1.19v, but
& W: y1 ~! ~+ a" C* ^' ^      an equivalent load applied to the model's I-V tables yields
      different voltages ( 0.00V and  0.98V),
# S* H% ~) t; I* s, ]      a difference of  0.00% and 21.94%, respectively.
ERROR - Model Model67: The [Falling Waveform]
      with [R_fixture]=50 Ohms and [V_fixture]=1.8V
      has TYP column DC endpoints of  0.63V and  1.80v, but
' B, d3 ~0 F! {4 q: t; Y2 \! ?      an equivalent load applied to the model's I-V tables yields
: n* z9 r, n) n1 ~! t      different voltages ( 0.88V and  1.80V),
) Q- a% ^3 N$ B+ r. F! f' Y3 H; K      a difference of 27.06% and  0.00%, respectively.
WARNING - Model Model67 Pulldown Minimum data is non-monotonic
WARNING - Model Model67 Pullup Maximum data is non-monotonic
ERROR - Model Model67: The [Rising Waveform]
      with [R_fixture]=50 Ohms and [V_fixture_max]=0V
" W$ t" ~+ J6 L      has MAX column DC endpoints of  0.00V and  1.38v, but
2 J/ O, L) N+ @( C, V      an equivalent load applied to the model's I-V tables yields
! ?5 C) o* _; |0 V& }) d      different voltages ( 0.00V and  1.15V),
      a difference of  0.00% and 20.19%, respectively.
% S- u2 z0 H7 vERROR - Model Model67: The [Falling Waveform]
      with [R_fixture]=50 Ohms and [V_fixture_max]=1.89V
# `+ H3 \- {! M  i      has MAX column DC endpoints of  0.53V and  1.89v, but
1 g- i# Q; l- K! v' w  U      an equivalent load applied to the model's I-V tables yields
      different voltages ( 0.84V and  1.89V),
" j7 Q0 V* B; b5 j8 {) z      a difference of 29.38% and  0.00%, respectively.

: b1 E4 O* I7 N' @$ B9 e' W哪位大侠知道的帮帮忙啊，不知道的也帮我分析分析吧。
  I( {& u6 w3 {9 X3 W% G我这有一段解释：This happens because the function acdc_VI_Given_VIC_VR() in acdc.c improperly
* G/ e5 c" M8 R) J2 ^reports the I-V/V-t intersection whenever it lies above the highest voltage in
the I-V characteristic.  This defect is likely to show itself in models lacking
clamp tables and in which either the [Pullup] or [Pulldown] table does not cover
, U+ [$ L2 x! F0 [+ v& f$ \: W" x7 p1 q9 Qthe range from -Vcc to 2*Vcc.  Any open drain or open source model which lacks
9 N, P7 E& _  Mclamp tables is likely to meet these conditions because it is likely to lack
either the [Pullup] or [Pulldown] table.  In this test case, IBISCHK generates
error messages only for the MIN data because the highest voltage in the high-
state I-V characteristic for the minimum corner lies below the 1.8 V V-T
operating voltage.
5 i' w' N  g: T: M8 L3 C+ V
但是缺少该怎么做啊