Unknown modifier: $pushAll"

[onurcill]

Request URL: http://localhost:3000/api/articles/test-2-rvhad1/comments
Request Method: POST
Status Code: 500 Internal Server Error

response : {"errors":{"message":"Unknown modifier: $pushAll","error":{"name":"MongoError","message":"Unknown modifier: $pushAll","driver":true,"index":0,"code":9,"errmsg":"Unknown modifier: $pushAll"}}}

[jkonstan]

I had the same problem.
Solution that i used:

1. Updated "mongoose" package to version 4.6.4
2. Change
   {timestamps: true}
   to
   {timestamps: true, usePushEach: true}
   in Shema constructors in files
   models/Article.js,
   models/Comment.js and
   models/User.js

for more info check:
Automattic/mongoose#4455
Automattic/mongoose#5574

[mkorostoff]

This solved the issue for me, and I think these changes ought to be committed to the main project, being that mongo dropped support for pushAll in version 3.6 in 2017 (which is, incidentally, about as long as this project has been abandoned).

Alternatively, we could update the readme to state that this project requires mongo <3.6.

[davidlin504]

Thanks ! It works
MongoDB server version: 3.6.0/ mongoose@4.6.4

[waseemahmadgit]

I had the same problem but @jkonstan solution worked just changed
{timestamps: true}
to
{timestamps: true, usePushEach: true}