云开发控制平台更新数据库报错？

Update Item Error:, Error: FailedOperation, multiple write errors: [{write errors: [{Updating the path ‘imgurl.0.nr.0’ would create a conflict at ‘imgurl.0.nr.0’}]}, {<nil>}] (fe138ca8-2b30-4aa2-a6f6-4f30c53cc600)