我也遇到了类似的问题，如果我没记错的话，我发现的是 EF不支持Cassade。自行删除，因此我们需要通过代码进行处理。我遵循的是

i also faced the similar issue, and if i remember correctly what i found is EF doesn't support cassade delete on self reference, so we need to handle it by code. What i followed is

• 从流利的api或生成的迁移中删除级联删除。
  


• 将代码添加到全部自引用的delte / setnull中，然后删除。