设置DFN裂缝后out文件提示“发现了DFN裂缝，但是没有发现有意义的交集”，这是什么原因，要怎么解决？

out文件的提示：DFN defined in the dataset but no meaningful intersection found.
Check your data and/or see your User’s manual.
data文件的DFN设置：
*BEGIN_DFN ‘dfn001’ CMG 5
*PERM-DF *ALL 8000 8000 8000 8000 8000
*APER-DF *ALL 0.0001 0.0001 0.0001 0.0001 0.0001
*CPOR-DF *CON 10.0E-6
*PRPOR-DF *CON 3990.30
*VERTEX
** first fracture
0.0005 -0.0001 0.01
0.0005 -0.042 0.01
0.019 -0.042 0.01
0.019 -0.0001 0.01
** 2nd fracture
0.0005 -0.0001 0.021
0.0005 -0.042 0.021
0.019 -0.042 0.021
0.019 -0.0001 0.021
** 3rd fracture
0.0005 -0.0001 0.032
0.0005 -0.042 0.032
0.019 -0.042 0.032
0.019 -0.0001 0.032
** 4th fracture
0.0005 -0.0001 0.025
0.0005 -0.042 0.025
0.019 -0.042 0.005
0.019 -0.0001 0.005
** 5th fracture
0.0005 -0.0001 0.005
0.0005 -0.042 0.005
0.019 -0.042 0.025
0.019 -0.0001 0.025
*END_DFN