C6748编译错误怎么办

各位开发者：
          大家好。我在CCS 5下开发C6748的BIOS下的UART程序，进行编译时，报出以下错误：
Description Resource Path Location Type #10010 errors encountered during linking; "myUart1.out" not built myUart1 C/C++ Problem
Description Resource Path Location Type unresolved symbol _configureUart, first referenced in ./uartSample_main.obj myUart1 C/C++ Problem
Description Resource Path Location Type unresolved symbol _edma3init, first referenced in ./uartSample_main.obj myUart1 C/C++ Problem
Description Resource Path Location Type unresolved symbol _Uart_init, first referenced in ./uartSample_main.obj myUart1 C/C++ Problem
Description Resource Path Location Type unresolved symbol _Uart_PARAMS, first referenced in ./uartSample_main.obj myUart1 C/C++ Problem
请教各位这个问题该如何解决。