Error
Error Code:
3949
MySQL Error 3949: Incompatible CFG File Version
Description
This error indicates that an attempt to import data, likely a table or tablespace, failed because its associated CFG (Configuration) file has a version that is not compatible with the current MySQL server instance. This typically occurs during migration or restoration processes when the source and target MySQL environments have different versions or builds.
Error Message
Failed to import %s because the CFG file version (%u) is not compatible with the current version (%u)
Known Causes
3 known causesIncompatible MySQL Server Version
The CFG file being imported was generated by a MySQL server instance running a different major or minor version than the current server, leading to format incompatibility.
Cross-Platform/Build Migration
Attempting to import a CFG file between MySQL servers with different underlying operating systems, architectures, or specific build configurations, even if the general version number seems similar.
Direct Downgrade/Upgrade Attempt
Direct file-based imports of CFG files are often not supported when moving data from a newer MySQL version to an older one (downgrade) or sometimes even from an older to a newer one (upgrade).
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