MSP430F5529单片机编译程出现错误怎么解决

错误如下：

unresolved symbol ADC12CTL0, first referenced in ./main.obj

#10010 errors encountered during linking; "222.out" not built

<a href="http://processors.wiki.ti.com/index.php/Compiler/diagnostic_messages/10234">#10234-D</a>  unresolved symbols remain

gmake: *** [all] Error 2

gmake[1]: *** [222.out] Error 1

Description Resource Path Location Type
unresolved symbol ADC12CTL1, first referenced in ./main.obj 222    C/C++ Problem

unresolved symbol ADC12MEM0, first referenced in ./main.obj