abaqus在模拟切削时出现如下错误

蒲东pd

The independent variables must be arranged in ascending order
The independent variables must be arranged in ascending order
Analysis Input File Processor exited with an error.
: T0 ~+ r$ q9 Y! Y4 z独立变量必须按升序排列
请问大侠们，应该怎么办
" \8 {9 z! u+ Y
4 n, q7 U$ Q& ]4 D8 f: }