LPCXpresso v5.1变异的时候出现/src/IOtest.c:28:21: fatal error: lpc17xx.h:

很迷茫，安装都对，运行的是实例程序，不存在编写错误，不知道怎么回事，求大神解决

21:14:29 **** Incremental Build of configuration Debug for project GPIO ****
make all
Building file: ../src/IOtest.c
Invoking: MCU C Compiler
arm-none-eabi-gcc -D__REDLIB__ -DDEBUG -D__CODE_RED -D__USE_CMSIS=CMSISv2_LPC17xx -I"D:\寮?彂\CMSISv2_LPC17xx\inc" -O0 -g3 -Wall -c -fmessage-length=0 -fno-builtin -ffunction-sections -fdata-sections -mcpu=cortex-m3 -mthumb -MMD -MP -MF"src/IOtest.d" -MT"src/IOtest.d" -o "src/IOtest.o" "../src/IOtest.c"
../src/IOtest.c:28:21: fatal error: lpc17xx.h: No such file or directory
compilation terminated.
make: *** [src/IOtest.o] Error 1

21:14:29 Build Finished (took 278ms)