I have a working project with meteor version 126.96.36.199, which I recently upgraded to 1.8.1 locally while updating some functionalities on the project.
When I tried to deploy with MUP, I foolishly changed the mongo version from 3.4.1 to 4.0.6 in my mup.js file. Now I am unable to deploy, and it shows the following when I run docker logs mongodb:
** IMPORTANT: UPGRADE PROBLEM: The data files need to be fully upgraded to version 3.6 before attempting an upgrade to 4.0; see http://dochub.mongodb.org/core/4.0-upgrade-fcv for more details.
Is there a way to reverse this? More importantly, if I need to run the project on a new server, is there any way to recover the previous data?
Any help would be greatly appreciated, thank you.