IO_Lib fails to load; register with EVS

When I attempt to run cFS, I get the following error on startup:

ES Startup: Loading shared library: /cf/apps/io_lib.so
Failed to register with EVS (0xC4000001)
ES Startup: Load Shared Library Init Error = 0xc4000001

The rest of the system continues to load, but IO_Lib does not. I looked up the error code in cfe_error.h and the comment says: "The given application ID does not reflect a currently active application."

The code causing the issue seems to be in io_lib_init.c:IO_LibInit():

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                 */
/* CFS Library Initialization Routine                              */
/* cFE requires that a library have an initialization routine      */
/*                                                                 */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int32 IO_LibInit(void)
{
    int32 ii = 0;
    int32 iStatus = 0;

    /* Perform any library initializations */
    iStatus = TMTF_LibInit();
    iStatus |= TM_SYNC_LibInit();
    iStatus |= TC_SYNC_LibInit();

    if (iStatus != CFE_SUCCESS)
    {
        CFE_ES_WriteToSysLog("IO_Lib Init failed.\n", iStatus);
    }


    CFE_PSP_MemSet((void*)g_IO_LIB_LibData.EventTbl, 0x00,
                   sizeof(g_IO_LIB_LibData.EventTbl));

    for(ii = 0; ii < IO_LIB_EVT_CNT; ++ii)
    {
        g_IO_LIB_LibData.EventTbl[ii].EventID = ii;
    }

    /* Register the table with CFE */
    iStatus = CFE_EVS_Register(g_IO_LIB_LibData.EventTbl, IO_LIB_EVT_CNT,
                               CFE_EVS_BINARY_FILTER);
    if (iStatus != CFE_SUCCESS)
    {
        CFE_ES_WriteToSysLog("Failed to register with EVS (0x%08X)\n", iStatus);
    }
    else
    {
        CFE_ES_WriteToSysLog("IO Lib Initialized.  Version %d.%d.%d.%d\n",
                           IO_LIB_MAJOR_VERSION,
                           IO_LIB_MINOR_VERSION,
                           IO_LIB_REVISION,
                           IO_LIB_MISSION_REV);
    }

    return iStatus;

}/* End CFS_LibInit */