用quartus综合nios软核时出现这样错误，请高手们进来看一下！
时间：10-02
整理：3721RD
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如图所示：这是所设置的，选用的芯片是epcs64, 请问错误在哪呢?
Error (169187): Following feature(s) of I/O pin epcs_sce has invalid setting(s) in the configuration scheme ACTIVE_SERIAL when the pin is placed at pin location D2
Info (169189): I/O feature 'Weak Pull Up' has an invalid setting. The setting should be ON.
Error (169187): Following feature(s) of I/O pin epcs_sce has invalid setting(s) in the configuration scheme ACTIVE_SERIAL when the pin is placed at pin location D2
Info (169189): I/O feature 'Weak Pull Up' has an invalid setting. The setting should be ON.
什么意思，可以讲清楚一点吗?
请问该怎么修改呢，一直进行不下去?
小编解决了吗?请指教
小编解决了吗，都困扰一晚上了，是在不知道是什么问题，如果解决了，麻烦告知一下
换了quartus 12.1之后编译成功了，之前用的13.0，真是bug啊。小编解决了吗?不行就换12.1吧，别在这上面浪费时间了。