Compatibility Issue with mongoose version 6.0.x

[Kaizennnnn]

when I upgraded my mongoose version to 6.0.7, I got some error like below

the error here is:

I'm using

Can someone help me solve this problem? Thanks

[IslandRhythms]

const mongoose = require('mongoose');



async function run() {
    await mongoose.connect('mongodb://localhost:27017/', {useNewUrlParser: true,
    useUnifiedTopology: true,});
    await mongoose.connection.dropDatabase();
   const session = await mongoose.connection.startSession({defaultTransactionOptions: {
        writeConcern: {w: 1},
        readConcern: {level: 'snapshot'}
    }});
    session.startTransaction();
    mongoose.sessions.set(id, session);
}

run();

[Kaizennnnn]

Hi @IslandRhythms I tried your way but still not solved. the main point here is where readConcern: {level: 'snapshot'} it gives an error: 'property 'toJSON' is missing in type '{ level: string; }' in readConcern mongoDb'
Is your mongoose version is 6.x?
I appreciate all your comments

[vkarpov15]

This is an issue with the MongoDB node driver, we opened up a PR ☝️

mongodb/node-mongodb-native#3010

[Uzlopak]

It was merged in mongodb 4.2, so we can close this issue :)