Error
Error Code:
1253
MySQL Error 1253: Invalid Collation for Character Set
Description
This error occurs when MySQL detects that the specified collation is not valid or compatible with the character set it is associated with. It commonly arises during database, table, or column creation, or when attempting to alter existing schema definitions, preventing the operation from completing.
Error Message
COLLATION '%s' is not valid for CHARACTER SET '%s'
Known Causes
3 known causesMismatched Collation and Character Set
You have specified a collation that does not belong to or is incompatible with the character set you are attempting to use.
Typographical Error in Name
A simple spelling mistake in either the character set or collation name can cause MySQL to fail to recognize it as valid.
Invalid Default Collation/Charset Settings
The default character set or collation configured for the database or server might be internally inconsistent, leading to errors when new objects are created.
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