ADUC7021 KEIL5 Project

您好,我用keil5.25,做了一个简单的应用,然后rebuild all files之后,出现以下的error,麻烦告诉我怎么做?谢谢。如下:

*** Using Compiler 'V5.06 update 6 (build 750)', folder: 'D:\Program files\KEIL\ARM\ARMCC\Bin'
Rebuild target 'Target 1'
assembling ADuC702x.s...
compiling UART2.c...
linking...
.\Objects\125.axf: Error: L6218E: Undefined symbol DAbt_Handler (referred from aduc702x.o).
.\Objects\125.axf: Error: L6218E: Undefined symbol FIQ_Handler (referred from aduc702x.o).
.\Objects\125.axf: Error: L6218E: Undefined symbol IRQ_Handler (referred from aduc702x.o).
.\Objects\125.axf: Error: L6218E: Undefined symbol PAbt_Handler (referred from aduc702x.o).
.\Objects\125.axf: Error: L6218E: Undefined symbol SWI_Handler (referred from aduc702x.o).
.\Objects\125.axf: Error: L6218E: Undefined symbol Undef_Handler (referred from aduc702x.o).
Not enough information to list image symbols.
Not enough information to list load addresses in the image map.
Finished: 2 information, 0 warning and 6 error messages.
".\Objects\125.axf" - 6 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed: 00:00:02