Error
Error Code:
2071
MySQL Error 2071: Client Tracker Type Mismatch
Description
This error occurs when a MySQL client attempts to connect to a server that requires a specific protocol feature or "tracker type" which the client does not recognize or support. It indicates a fundamental incompatibility in the communication capabilities between the client and server, preventing a successful connection.
Error Message
Client does not recognise tracker type %d marked as mandatory by server.
Known Causes
3 known causesOutdated Client Software 💻
The MySQL client application or connector is an older version that lacks support for specific protocol features or "tracker types" that a newer MySQL server requires.
Outdated Client Library/Driver ⚙
The underlying client library or database driver (e.g., JDBC connector, PHP mysqli extension) is outdated and doesn't recognize mandatory server communication protocols.
Server's Mandatory Feature ⚙
The MySQL server is configured to enforce a specific communication feature or extension that is not supported by the connecting client, often due to a significant version gap.
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