my version info:
MongoDB shell version v4.2.14
<DBNAME>
authenticated
4.2.14
==================
node --version
v14.18.0
==================
I am not doing anything creative - simply trying to follow the tutorial given below (by mongo):
Apparently .watch function is in mongo since version 3.0 – anothe rplace i read it has been there since 3.6 but i have ver4.2.14 - so i should be good there.
For node.js – i have version 14.18.0 (latest perhaps)
I am getting this error while trying to run the code present in the tutorial.
There is no issue with my db connection as i have tried it out separately.
the error is as follows:
events.js:377
throw er; // Unhandled 'error' event
^
MongoServerError: Unrecognized pipeline stage name: '$changeStream'
at MessageStream.messageHandler (/home/directorypath/node_modules/mongodb/lib/cmap/connection.js:467:30)
at MessageStream.emit (events.js:400:28)
at processIncomingData (/home/directorypath/node_modules/mongodb/lib/cmap/message_stream.js:108:16)
at MessageStream._write (/home/directorypath/node_modules/mongodb/lib/cmap/message_stream.js:28:9)
at writeOrBuffer (internal/streams/writable.js:358:12)
at MessageStream.Writable.write (internal/streams/writable.js:303:10)
at Socket.ondata (internal/streams/readable.js:731:22)
at Socket.emit (events.js:400:28)
at addChunk (internal/streams/readable.js:293:12)
at readableAddChunk (internal/streams/readable.js:267:9)
Emitted 'error' event on ChangeStream instance at:
at closeWithError (/home/directorypath/node_modules/mongodb/lib/change_stream.js:356:22)
at processError (/home/directorypath/node_modules/mongodb/lib/change_stream.js:449:12)
at Readable.<anonymous> (/home/directorypath/node_modules/mongodb/lib/change_stream.js:365:33)
at Readable.emit (events.js:400:28)
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:82:21) {
ok: 0,
code: 16436
}