#define LOS_ERRNO_SWTMR_MAXSIZE_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_SWTMR, 0x08)

Software timer error code: Invalid configured number of software timers.

Value: 0x02000308

Solution: Re-configure the number of software timers.

在文件los_swtmr.h140行定义。