求助，virtual lab acoustic计算中出现了问题

不群之芳

Import 7800 nodes
Import 5528 elements
Import 39828 nodes
Import 24592 elements
Import 26205 nodes
Import 16345 elements
Some nodes have more than one result of the same type for the selected subcase and step.
The extra results were found in 'ODB analysis result'.
  If this is an ASCII file, you could try to introduce a new step or subcase ID for this data set.
请问这个问题怎么解决