DC自动退出

大家好， 我在做DC综合时没有问题。 现在加了PAD以后。如果只加输出口的PAD的也没问题，但加上了输入口（时钟和复位端）的PAD后。综合自动退出。试了很多版本都这个问题
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Processing 'ProcessorM0'
Processing 'ProcessorM0_PAD'
Warning: Cell PAD_ResetInput conflicts with the ICP_V5 in the target library. (OPT-106)
Warning: Cell PAD_CLK conflicts with the ICCK2P_V5 in the target library. (OPT-106)
Error processing design 'ProcessorM0_PAD'.
Error: Compile has abnormally terminated.(OPT-100)