RTOS/AWR1642BOOST: Clock errors request

Tool/software: TI-RTOS

hello,

     The codes as follows：

void MmwDemo_dssFrameClkExpire(UArg arg)
{
System_printf("The enter a function!\n");
}

Int main()
{

Clock_Params clkParams;

System_printf("The first output flag!\n");

Clock_Handle ClkHandle;

Clock_Params_init( &clkParams );
ClkHandle = Clock_create((Clock_FuncPtr)MmwDemo_dssFrameClkExpire,
0, &clkParams, NULL);
if (ClkHandle == NULL)
{
System_printf("Error: Unable to create a clock\n");
return -1;
}

System_printf("The second output flag!\n");
Clock_setTimeout(ClkHandle,5000);
Clock_start(ClkHandle);
System_printf("The third output flag!\n");

BIOS_start();

return(0);
}

The console encounter the followed  errors：

[C674X_0] The first output flag!
The second output flag!
The third output flag!
{module#48}: line 99: error {id:0x10000, args:[0x80491d, 0x80491c]}
xdc.runtime.Error.raise: terminating execution

what cause the above errors？where is the error（{module#48}: line 99: ）？