Room Member list not working

[xcpdq]

Since the last update (I think) the member list of any room doesn't work. Nothing shows up. I upgraded to 0.73.1 but the error is present in this version as well. The error I see in the console is:

rocketchat_1 | Exception while invoking method 'getUsersOfRoom' { MongoError: exception: Unrecognized pipeline stage name: '$lookup'
rocketchat_1 | at queryCallback (/app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb-core/lib/cursor.js:248:25)
rocketchat_1 | at /app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb-core/lib/connection/pool.js:532:18
rocketchat_1 | at _combinedTickCallback (internal/process/next_tick.js:131:7)
rocketchat_1 | at process._tickDomainCallback (internal/process/next_tick.js:218:9)
rocketchat_1 | => awaited here:
rocketchat_1 | at Function.Promise.await (/app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
rocketchat_1 | at Promise.asyncApply (server/methods/getUsersOfRoom.js:23:11)
rocketchat_1 | at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
rocketchat_1 | errmsg: 'exception: Unrecognized pipeline stage name: '$lookup'',
rocketchat_1 | code: 16436,
rocketchat_1 | ok: 0,
rocketchat_1 | name: 'MongoError',
rocketchat_1 | [Symbol(mongoErrorContextSymbol)]: {} }

[didierm]

#13051 (comment)

[sampaiodiego]

@xcpdq do you mind filling the issue the template? seems you're running and old version of MongoDB (3.0 or below). You should be running 3.2 or higher

[reetp]

Read this first:
https://rocket.chat/docs/contributing/reporting-issues

Then fill out these details properly and paste here thank you:
https://github.com/RocketChat/Rocket.Chat/issues/new?template=bug_report.md

[antgel]

Closing as this is the "didn't upgrade Mongo" issue and OP hasn't responded.