求高手分析 keypoint 1 is associated with node

keypoint 1 is associated with node 809 and cannot be changed.做优化分析的时候出现这个错误提示我看运行进度刚到模型建立的第一个点就出现错误了还没划分网格怎么会有关键点和节点重合的情况呢求高手解答啊急急急...