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NS_E_PDA_SYNC_RUNNING
How to investigate NS_E_PDA_SYNC_RUNNING
The code 0xC00D1243 narrows the event to rejecting an operation that conflicts with the currently active sync generation. Treat this result as a checkpoint in windows media player synchronization engine and retain its first lower-level error.
What the Player is doing
At the checkpoint, automatic synchronization uses a Player-to-device partnership, a snapshot of selected playlists and a queue of per-item copy, delete or retrieval operations; The sync engine owns its own running state and can reject changes while a previous generation is active. The page-specific boundary is rejecting an operation that conflicts with the currently active sync generation.
A working manual file copy does not prove that the Player’s partnership, playlist snapshot and synchronization queue are valid. A realistic trigger is that the application tries to modify device content while automatic sync is running.
Capture before changing state
| Evidence | Why it matters for sync running |
|---|---|
| Producing object and operation | device and partnership IDs, sync generation and state, selected playlist identity/version, queued item ID and direction, subscription account, target storage, progress callback and first item-specific HRESULT |
| Decisive observation | current sync state, generation ID, requested command and active item |
| Generation identity | Record the same disc, device, job or Player operation generation that returned this result; a reconnect or media change creates a different test. |
| Underlying result | Keep the first device, filesystem, COM, codec, DirectShow, IMAPI or BITS result seen before the Player mapped it to this result. |
| Controlled comparison | Repeat the producing call after changing only this condition: stop or let the current generation complete before issuing the command. |
Interpretation guide
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with rejecting an operation that conflicts with the currently active sync generation; correct that state before changing unrelated codecs, drivers or playlists. |
| A lower layer failed before this result | Preserve that earlier HRESULT or device result because it may be only the Player-level mapping. |
| The same call passes after one isolated change | The comparison supports the sync running diagnosis rather than a broad installation failure. |
| The code changes after retesting it | The boundary was passed; diagnose the new HRESULT as the next independent stage. |
It scopes the failure to rejecting an operation that conflicts with the currently active sync generation.
Five-step isolation test
- Capture
0xC00D1243, it, the exact Player/API operation and the first timestamp at which it appears. - Save current sync state, generation ID, requested command and active item; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- correlate the result with device and partnership IDs, sync generation and state, selected playlist identity/version, queued item ID and direction, subscription account, target storage, progress callback and first item-specific HRESULT.
- Reproduce once with the original source and destination, then apply only this change: stop or let the current generation complete before issuing the command.
- Create a fresh operation generation and verify that the original call advances beyond the sync running boundary.
Different boundaries in the same family
| Related result | Different diagnostic boundary |
|---|---|
NS_E_PDA_RETRIEVED_FILE_FILENAME_TOO_LONG | mapping a device object name to a legal local destination path |
NS_E_PDA_SYNC_LOGIN_ERROR | authorizing subscription content for synchronization with the providing store |
NS_E_CANNOT_SYNC_PREVIOUS_SYNC_RUNNING | starting a new generation while the device has not completed or released the previous one |
Correction criteria
The test is successful when you stop or let the current generation complete before issuing the command, recreate the owning operation, and the original call no longer returns it.
When verifying it, do not delete and recreate the partnership before exporting the selected playlists and recording the first failing item; otherwise the state needed to distinguish queue, account and device failures is lost.
Documentation
- About Device Synchronization.
- Working with Portable Devices.
- Enabling synchronization with Windows Media Player.
- Sending a file to a portable device.
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