（nodejs ）mongodb 更新数据失败... MongoError: After applying the update to the document {_id

MongoError: After applying the update to the document {_id: "895f2731-2122-11
e9-8ed4-a30d938050f7" , ...}, the (immutable) field '_id' was found to have been altered to _id: "751c9c90-229d-11e9-826
a-fb553896c60b"   

 

解决方法：分析日志看修改的内容里面是否有“_id”,删除修改对象里面的"_id".

修改的对象里面不能带“_id”,因为mongodb的"_id"是不能修改的。

如：const updateObj = {
       fA: ""，

       fB:"",

       fC:"",
        ....
        
    };