Error
Error Code:
243
MongoDB Error 243: Client-Server Version Mismatch
Description
This error indicates that the MongoDB client (driver or shell) you are using is incompatible with the version of the MongoDB server it is attempting to connect to. It most commonly occurs after a MongoDB server upgrade, where the client's version is too old to communicate effectively with the new server version due to protocol changes or deprecated features.
Error Message
Incompatible With Upgraded Server
Known Causes
3 known causesOutdated Client or Driver
The MongoDB shell (mongosh) or application driver being used is an older version that does not support the protocol or features of the upgraded MongoDB server.
Major Server Version Upgrade
The MongoDB server has undergone a significant major version upgrade (e.g., from 4.x to 5.x or 6.x), which often introduces breaking changes requiring newer clients.
Incompatible Protocol Version
The client and server are attempting to communicate using different, incompatible wire protocol versions, preventing a successful connection.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service