目录

backgroundTaskManager Error Codes

This topic describes only module-specific error codes. For details about universal error codes, see Universal Error Codes.

9800001 Memory Operation Failure

Error Message

Memory operation failed.

Description

This error code is reported when a memory operation fails.

Possible Causes

  1. A memory leak occurs.
  2. The system memory is insufficient.

Solution

  1. Release the memory.
  2. Check whether memory leak occurs.

9800002 Parcel Operation Failure

Error Message

Parcel operation failed.

Description

This error code is reported when the read or write operation fails during IPC.

Possible Causes

An exception occurs when invoking the MessageParcel object to read or write an object.

Solution

Try again later or restart the device.

9800003 IPC Failure

Error Message

Internal transaction failed.

Description

This error code is reported when IPC fails.

Possible Causes

IPC fails.

Solution

Try again later or restart the device.

9800004 System Service Failure

Error Message

System service operation failed.

Description

This error code is reported when the client process fails to obtain the system service.

Possible Causes

  1. The system service is not started.
  2. The system service is abnormal.

Solution

Try again later or restart the device.

9800005 Continuous Task Verification Failure

Error Message

Continuous task verification failed.

Description

This error code is reported when continuous task verification fails.

Possible Causes

  1. The application repeatedly requests a continuous task.
  2. The application repeatedly cancels a continuous task.
  3. The value of bgMode is invalid because no continuous task type is configured for backgroundModes in the application's configuration file.
  4. Only specific devices can request continuous tasks of the KEEPING_TASK type.

Solution

  1. Check the application code.
  2. Check whether the application has the system permissions.
  3. Check the type of the device where the application is located.
  4. Check the value of backgroundModes.

9800006 Notification Verification Failure for a Continuous Task

Error Message

Notification verification failed for a continuous task.

Description

This error code is reported when notification verification in a continuous task fails.

Possible Causes

  1. The continuous task resources cached in the resource subsystem fail to be loaded.
  2. The notification subsystem functions abnormally.

Solution

  1. Check for the continuous task resources ohos.backgroundtaskmgr.resources.
  2. Try again later or restart the device.

9800007 Continuous Task Storage Failure

Error Message

Continuous task storage failed.

Description

This error code is reported when information storage in a continuous task fails.

Possible Causes

  1. Failed to create a file to store the task information.
  2. Failed to obtain the file path.
  3. Failed to open the file that stores the task information.

Solution

  1. Check the /data/service/el1/public/background_task_mgr/running_task file.
  2. Try again later or restart the device.

9900001 Caller Information Verification Failure for a Transient Task

Error Message

Caller information verification failed for a transient task.

Description

This error code is reported when caller information verification in a transient task fails.

Possible Causes

  1. Failed to obtain the UID or PID of the caller.
  2. Failed to obtain the bundle name of the caller.
  3. The request ID passed in the API used to cancel the transient task is invalid.

Solution

  1. Check whether the application UID exists.
  2. Check whether the application has requested a transient task.
  3. Try again later or restart the device.

9900002 Transient Task Verification Failure

Error Message

Transient task verification failed.

Description

This error code is reported when transient task verification fails.

Possible Causes

  1. The callback passed in requestSuspendDelay() already exists.
  2. The callback passed in cancelSuspendDelay() does not exist.
  3. The application attempts to request a transient task 5 seconds after it switches to the background.
  4. The application has already requested three transient tasks.
  5. The application's daily quota for transient tasks is used up.

Solution

  1. Check the application code.
  2. The application should cancel transient tasks immediately after they are complete.

18700001 Caller Information Verification Failure for an Energy Resource Request

Error Message

Caller information verification failed for an energy resource request.

Description

This error code is reported when caller information verification in an energy resource request fails.

Possible Causes

  1. Failed to obtain the UID or PID of the caller.
  2. The value of resourceTypes for requesting energy resources exceeds the upper limit.

Solution

Check the input parameters.