#define LOS_ERRNO_SWTMR_TASK_CREATE_FAILED   LOS_ERRNO_OS_ERROR(LOS_MOD_SWTMR, 0x0c)

Software timer error code: The software timer task fails to be created.

Value: 0x0200030c

Solution: Check whether the memory is sufficient and re-create the task.

在文件los_swtmr.h180行定义。