Node js driver version conflicts with Mongo 3.6

[Jahan_Hayes]

I’m running into problems trying to connect a Node js back end to Mongo db (v3.6) using Mongoose. According the Mongo compatibility docs (https://www.mongodb.com/docs/drivers/node/current/compatibility/) Mongo 3.6 should still be reachable using the Node driver v6.8 or lower. However, I have mongodb@6.0 installed in my project and I still receive the following error:

“Server at [connection string] reports maximum wire version 6, but this version of the Node.js Driver requires at least 7 (MongoDB 4.0)”

Here’s a look at my package.json:

Any ideas what else I’m missing?

UPDATE:

• I tried uninstalling Mongo v8.0 from my computer (Windows 10), and installed Mongo 6.0 AND even set the new mongo version path in my environment variables and still no luck.

[alexbevi (Alex Bevilacqua)]

As of Node.js Driver 6.10.0 the minimum version of MongoDB required is 4.0 (see NODE-5838). Check your package-lock.json to see if maybe you’re using 6.10.0+ of the driver, as 6.9.0 and earlier should continue to work with MongoDB 3.6.

[Jahan_Hayes]

This was the problem, thank you! Mongoose installs mongodb as a dependency and Mongoose v8.x.x has a minimum of mongo@6.10. Downgrading Mongoose to v7 or lower will allow connection mongo 3.6.