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NS_E_WMPCORE_PLAYLIST_REPEAT_EMPTY
What this HRESULT means
0xC00D10AC maps to NS_E_WMPCORE_PLAYLIST_REPEAT_EMPTY. Its actionable interpretation is a REPEAT block contains no media items to repeat within the Windows Media playlist and metafile state machine; the producing mechanism is the layer that turns ASX/WAX/WVX/WMX or library playlists into Media objects, resolves REF and ENTRYREF URLs, expands nesting, handles EVENT and REPEAT blocks and advances to alternates.
An additional test is to record the REPEAT XML, child count and COUNT value; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.
Evidence to capture before retry
Preserve the first occurrence before retry or fallback changes the playback core playlist repeat empty evidence. Capture one consistent object instance:
| Field | What to record |
|---|---|
| What to verify | Record the REPEAT XML, child count and COUNT value |
| Artifact identity | Resolved base URL for REF or ENTRYREF targets for the playback core playlist repeat empty reproduction |
| Runtime state | Current item index, alternate index and nested-playlist depth for this reproduction |
| Owning object | Repeat/event point and the media object expected at its start or end for this reproduction |
| Lower-level result | Playlist URL, format, response content type and exact downloaded bytes for this reproduction |
| Correlation | ASX version and element stack at the failure for this reproduction |
How this layer works
this workflow must be separated from a generic WMP failure: Windows Media metafiles are XML documents, but a well-formed document can still violate required ASX element and attribute rules. It also matters that relative references are resolved against the containing metafile URL, and nested playlists introduce a stack and a new base URL rather than a simple flat list.
Representative case: A repeat wrapper remains after all contained entries were filtered out.
A focused diagnostic sequence
- Use this deciding observation for this condition: record the REPEAT XML, child count and COUNT value.
- Apply the smallest supported remedy for this condition: add ENTRY/ENTRYREF children or remove the empty block.
Correct the producing condition
The targeted correction for this condition is to add ENTRY/ENTRYREF children or remove the empty block. Keep the original failing input until the same operation succeeds after one controlled change.
Why the symbolic name matters
| Result | Different condition |
|---|---|
NS_E_WMPCORE_PLAYLIST_REPEAT_START_MEDIA_NONE | The runtime cannot find the Media object that should mark the beginning of a REPEAT block |
NS_E_WMPCORE_PLAYLIST_REPEAT_END_MEDIA_NONE | The runtime cannot find the Media object that should mark the end of a REPEAT block |
NS_E_WMPCORE_CURRENT_MEDIA_NOT_ACTIVE | The requested action targets a Media object that is not the currently active item |
Regression check
Technical references
- Windows Media metafile reference — documentation for this HRESULT.
- Metafile elements reference — normative or platform material relevant to this HRESULT.
- ENTRYREF element — API or format context.
- REPEAT element
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