The project may contain an out of date de

Hi all,

Could anyone tell me what's wrong?

When I compile "web server" in nios2 IDE,A error appears as the following:

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**** Incremental build of configuration Debug for project web_server_0 ****

make -s all

make: *** [/cygdrive/c/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/stdio.h] File does not exist.make: *** [/cygdrive/c/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/stdio.h] The project may contain an out of date dependency file.

make: *** [/cygdrive/c/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/stdio.h] Try &#39;Clean...&#39; from the Project menu for project web_server_0.

make: *** [/cygdrive/c/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/stdio.h] Error 1

Build completed[/b]

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