TMS320F28335: 编译出错

Part Number: TMS320F28335

我用CCS7调试TMS320F28335的程序,又出错了:

error: unresolved symbols remain
error: errors encountered during linking;
   "E:/TMS320F28335_XC3S50AN/TMS320F28335_XC3S50AN/DAIMA/TMS320F28335/28335_sou
   rce/DSP2833x_examples/adc_dma/Example_2833xAdcToDMA/../../../DSP2833x_exampl
   es/adc_dma/Debug/Example_2833xAdcToDMA.out" not built
gmake: *** [E:/TMS320F28335_XC3S50AN/TMS320F28335_XC3S50AN/DAIMA/TMS320F28335/28335_source/DSP2833x_examples/adc_dma/Example_2833xAdcToDMA/../../../DSP2833x_examples/adc_dma/Debug/Example_2833xAdcToDMA.out] Error 1
gmake: Target 'all' not remade because of errors.

* Build Finished *

请问高手,如何解决?谢谢!