ARM:LPC11E68JBD100,startup file system_LPC11E6x.c has error

ARM:LPC11E68JBD100

Now I use keil uVision 5.16 to create nxp LPC11E68JBD100 project,found startup file system_LPC11E6x.c has a error tip at #include "LPC11E6x.h",the tip is: " error in include (cmsis_armcc.h):expected or identifier '(‘", if I change #include "LPC11E6x.h" to #include "LPC11Exx.h",There is no tip. why ?

thanks!

Jansen

system_LPC11E6x.c:

/**************************************************************************//** * @file system_LPC11E6x.c * @brief CMSIS Cortex-M3 Device System Source File for * NXP LPC11E6x Device Series * @version V1.00 * @date 16. June 2014 * * @note * Copyright (C) 2014 ARM Limited. All rights reserved. * * @par * ARM Limited (ARM) is supplying this software for use with Cortex-M * processor based microcontrollers. This file can be freely distributed * within development tools that are supporting such ARM based processors. * * @par * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. * ******************************************************************************/

#include <stdint.h>
error tip #include "LPC11E6x.h"

/*
//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
*/

/*- SystemCoreClock Configuration -------------------------------------------*/
// <e0> SystemCoreClock Configuration
#define CLOCK_SETUP 1
// The rest has being canceled