[Error li1021]  The following symbols referenced in processor 'p0' could not be resolved:
        'ADValid [_ADValid]' referenced from '.\Debug\LowPower.doj'
        'GetSecCntFlag [_GetSecCntFlag]' referenced from '.\Debug\LowPower.doj'
        'GetTimeFlag [_GetTimeFlag]' referenced from '.\Debug\LowPower.doj'
        'NandReset [_NandReset]' referenced from '.\Debug\LowPower.doj'
        'NdFlashInit [_NdFlashInit]' referenced from '.\Debug\LowPower.doj'
        'PowerComm [_PowerComm]' referenced from '.\Debug\LowPower.doj'
        'SetDAFlag0 [_SetDAFlag0]' referenced from '.\Debug\LowPower.doj'
        'SetDAFlag1 [_SetDAFlag1]' referenced from '.\Debug\LowPower.doj'
        'StopDAFlag0 [_StopDAFlag0]' referenced from '.\Debug\LowPower.doj'
        'StopDAFlag1 [_StopDAFlag1]' referenced from '.\Debug\LowPower.doj'
        'UartFlag1 [_UartFlag1]' referenced from '.\Debug\interrupt.doj'
        'UartFlag2 [_UartFlag2]' referenced from '.\Debug\interrupt.doj'
        'UartGetPacket [_UartGetPacket]' referenced from '.\Debug\interrupt.doj'
        'UartGetPacket [_UartGetPacket]' referenced from '.\Debug\uart.doj'
        'UartRxPackSize [_UartRxPackSize]' referenced from '.\Debug\LowPower.doj'
        'UartRxPackSize [_UartRxPackSize]' referenced from '.\Debug\interrupt.doj'
        'UartRxPackSize [_UartRxPackSize]' referenced from '.\Debug\uart.doj'
        'UartTxPackSize [_UartTxPackSize]' referenced from '.\Debug\LowPower.doj'
        'delay [_delay]' referenced from '.\Debug\LowPower.doj'
        'delay [_delay]' referenced from '.\Debug\peripheral.doj'
        'uart_in_cmd [_uart_in_cmd]' referenced from '.\Debug\interrupt.doj'
        'uart_in_cunt [_uart_in_cunt]' referenced from '.\Debug\interrupt.doj'
        'uart_in_cunt [_uart_in_cunt]' referenced from '.\Debug\uart.doj'
        'uart_tx_cnt [_uart_tx_cnt]' referenced from '.\Debug\interrupt.doj'
        'uart_tx_data [_uart_tx_data]' referenced from '.\Debug\interrupt.doj'
        'uart_tx_size [_uart_tx_size]' referenced from '.\Debug\interrupt.doj'

Linker finished with 1 error
cc3089: fatal error: Link failed
Tool failed with exit/exception code: 1.
Build was unsuccessful.

这是一种什么类型的错误，怎么解决啊？

万分感谢！

@2楼

可是我已经明明把定义的.c文件加到工程中了！！