What does Windows error code 8404 (ERROR_DS_CANT_REMOVE_CLASS_CACHE) mean?

 
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ERROR_DS_CANT_REMOVE_ATT_CACHE ERROR_DS_CANT_RETRIEVE_DN

ERROR_DS_CANT_REMOVE_CLASS_CACHE

A cached class still has relationships that prevent clean removal

Class definitions participate in an inheritance and placement graph: subclasses point to superclasses, classes can use auxiliary classes, and possible-superior lists reference other classes. This status occurs when the directory cannot remove a class cleanly from its in-memory schema state. It is therefore closely tied to schema dependency integrity.

Inspect reverse references to the class before treating the cache as corrupt. A class still used in subClassOf, auxiliary-class lists, or possible-superior lists has semantic dependents that must remain resolvable. If the error follows a custom schema change, compare the modification sequence with the extension design and locate the first dependency error that preceded cache cleanup.

What to inspect

  • Find subclasses, auxiliary references, and possible-superior references to the class.
  • Correlate the failure with the exact schema object changed immediately beforehand.
  • Use supported schema migration procedures instead of attempting to force cache deletion.

References


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