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NS_E_WMPCORE_PLAYLIST_EMPTY_OR_SINGLE_MEDIA
Diagnosing NS_E_WMPCORE_PLAYLIST_EMPTY_OR_SINGLE_MEDIA
0xC00D108B maps to this result. Its actionable interpretation is the requested playlist operation requires multiple items, but the list has at most one 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.
Evidence that separates the result
| Field | What to record |
|---|---|
| Decisive check | Record item count, play mode and the multi-item operation being requested |
| Artifact identity | Playlist URL, format, response content type and exact downloaded bytes for this reproduction |
| Runtime state | ASX version and element stack at the failure for this reproduction |
| Owning object | Resolved base URL for REF or ENTRYREF targets for this reproduction |
| Lower-level result | Current item index, alternate index and nested-playlist depth for this reproduction |
| Correlation | Repeat/event boundary and the media object expected at its start or end for this reproduction |
Representative case for playback core playlist empty or single media: Shuffle or another list-level transition is requested against a one-item list. The example isolates only the producing component.
Focused test and correction
- Perform the code-specific test: record item count, play mode and the multi-item operation being requested.
- Make the narrow correction—populate a multi-item playlist or disable the operation that assumes more than one item—and repeat the same producing operation.
Nearby results with different boundaries
| Result | Different boundary |
|---|---|
NS_E_WMPCORE_PLAYLISTEMPTY | The current playlist contains zero media items at the point an item is required |
NS_E_WMPCORE_ITEMNOTINPLAYLIST | The requested Media object is not a member of the current Playlist generation |
NS_E_WMPCORE_NO_REF_IN_ENTRY | An ASX ENTRY element has no usable REF child after parsing |
Verification
Repeat the original operation with a fresh owning object after the identified precondition is corrected. Treat this result as resolved only when that same operation passes this stage; preserve any later HRESULT as a separate failure.
Technical references
- Windows Media metafile reference — normative or platform material relevant to this result.
- Metafile elements reference — API or format context for this HRESULT.
- ENTRYREF element — documentation used to identify the producing boundary of this result.
- REPEAT element
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