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：
ERROR - Model Model67: The [Rising Waveform]
      with [R_fixture]=50 Ohms and [V_fixture]=0V
; W* G% j1 |2 l& ]1 t* w      has TYP column DC endpoints of  0.00V and  1.19v, but
      an equivalent load applied to the model's I-V tables yields
4 M; [. e/ \# f8 T" v3 ^      different voltages ( 0.00V and  0.98V),
1 r( q0 b* g$ e/ }      a difference of  0.00% and 21.94%, respectively.
ERROR - Model Model67: The [Falling Waveform]
1 d, @; O  t) W3 @: J. G      with [R_fixture]=50 Ohms and [V_fixture]=1.8V
  n# `& U( E. q7 K3 P# p6 D. O2 A) ]      has TYP column DC endpoints of  0.63V and  1.80v, but
      an equivalent load applied to the model's I-V tables yields
- i  k& }, b  f8 L2 w      different voltages ( 0.88V and  1.80V),
2 _& H5 e* e, X' U/ h8 V      a difference of 27.06% and  0.00%, respectively.
WARNING - Model Model67 Pulldown Minimum data is non-monotonic
4 @8 Q2 j3 J# M) n7 yWARNING - Model Model67 Pullup Maximum data is non-monotonic
ERROR - Model Model67: The [Rising Waveform]
! p8 I7 H0 Y" V  J      with [R_fixture]=50 Ohms and [V_fixture_max]=0V
      has MAX column DC endpoints of  0.00V and  1.38v, but
5 }; |3 W$ f- l, v% B      an equivalent load applied to the model's I-V tables yields
      different voltages ( 0.00V and  1.15V),
      a difference of  0.00% and 20.19%, respectively.
/ u0 h: P* \( p8 IERROR - Model Model67: The [Falling Waveform]
% d& ]. G* A* j5 H      with [R_fixture]=50 Ohms and [V_fixture_max]=1.89V
4 r& o+ @' g# W) x6 n6 [/ I      has MAX column DC endpoints of  0.53V and  1.89v, but
      an equivalent load applied to the model's I-V tables yields
      different voltages ( 0.84V and  1.89V),
* @9 K1 C& [$ l      a difference of 29.38% and  0.00%, respectively.
4 V; F6 P" d/ W+ x/ j
( T  @1 r+ f2 p) L" F: m哪位大侠知道的帮帮忙啊，不知道的也帮我分析分析吧。
我这有一段解释：This happens because the function acdc_VI_Given_VIC_VR() in acdc.c improperly
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
: H4 |( ^$ i% J' n) r% T* Ethe range from -Vcc to 2*Vcc.  Any open drain or open source model which lacks
clamp tables is likely to meet these conditions because it is likely to lack
! C' |3 ^5 ]# w7 b# n/ c$ L5 E0 a: X3 g# teither the [Pullup] or [Pulldown] table.  In this test case, IBISCHK generates
& @) o4 c. j8 e3 M# _- T/ Qerror 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.

但是缺少该怎么做啊