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Informix Error -12108: Smart Large Objects: Unknown version.

Cause and resolution

Smart Large Objects: Unknown version.

Server encountered an unknown version during conversion of smart-large-object metadata. Make sure that you are converting/reverting to a supported version of the server.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-12108 fires when the server encounters an unknown version during smart-large-object metadata conversion — per the official guidance.

  1. Converting to/reverting from an unsupported server version, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Confirm you're converting/reverting to a supported server version, per the official guidance.
Examples
N/A

No specific triggering statement is documented beyond an unsupported version-conversion target.

Diagnostic Checks
  1. Check the target version against the documented list of supported conversion/reversion versions.
Related Errors / Related Topics
  • -12109 — "Smart Large Objects: Conversion failed." A related version-conversion error, on the conversion itself failing rather than an unrecognized target version.

An unknown version was encountered during metadata conversion — confirm the target version is supported.