Cant start meteor howto export mongodb collections?

Hi,

I have just upgraded to meteor 1.8.1 and can only start meteor when doing a meteor reset, I have a backup of my meteor/local/db/ folder

Howto import the backup collections/folder to the reset meteor version?

You can install mongodb on your machine and point to the backed up folder. Dump it and restore back to mongo running with meteor.

your database will need to be upgraded, which should happen automatically if it’s one version behind otherwise it will fail.

If it’s failing, the best solution is to export the data and import it into the new database

How do i point it to the backup folder?

path: C:\Program Files\MongoDB\Server\4.0\data

you specify that on dbpath argument while starting mongod, please check mongodb docs