Question

nios ii 编译出错 那两个EEROR是怎么回事?

**** Build of configuration Nios II for project led_test ****

make all
Info: Building ../led_test_bsp
make --no-print-directory -C ../led_test_bsp
Makefile not up to date.
../../led.sopcinfo has been modified since the BSP was generated.

Regenerate the BSP to update the Makefile, and then build again.

To regenerate from Eclipse:
1. Right-click the BSP project.
2. In the Nios II Menu, click Generate BSP.

To regenerate from the command line:
nios2-bsp-generate-files --settings=<settings file> --bsp-dir=<target bsp files directory>

make[1]: *** [public.mk] Error 1
make: *** [../led_test_bsp-recurs-make-lib] Error 2
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Answer 1

错误信息里写得很清楚呀：
Regenerate the BSP to update the Makefile, and then build again.

To regenerate from Eclipse:
1. Right-click the BSP project.
2. In the Nios II Menu, click Generate BSP.

这么操作一下就可以了。

Answer 2

需要重新编译BSP，重新编译一下BSP就行了

Answer 3

是不是也没编译到NIOS库这一步就报错了，是的话好像只有重新建工程才能解决。