Ok the error you got looks to be something that changed with mongodb 3.6 and we
haven't updated for. I created ticket [#8348] for that. You could try a prior
version of mongo, or work on code changes for [#8348] (if you do that, please
make sure they are separate commits from import work, so
Documentation about it:
https://docs.mongodb.com/manual/release-notes/3.6-compatibility/#aggregate-command-and-results
and https://docs.mongodb.com/manual/reference/command/aggregate/#example
---
** [tickets:#8348] Support mongo 3.6+**
**Status:** open
**Milestone:** unreleased
**Created:**
---
** [tickets:#8348] Support mongo 3.6+**
**Status:** open
**Milestone:** unreleased
**Created:** Wed Jan 22, 2020 07:13 PM UTC by Dave Brondsema
**Last Updated:** Wed Jan 22, 2020 07:13 PM UTC
**Owner:** nobody
Reported initially at [#7935] this occurs during a project export, probably
