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Altera_Forum's avatar
Altera_Forum
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16 years ago

compiler cannot find header files

I imported a folder containing one header file and several c files into the Nios II project. When I included the header file in my main task c file located outside the folder, the compiler point out the error: xx.h:No such file or directory.

Is anybody able to help me out?

Thanks a lot!

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    1. Path names cannot have spaces.

    2. You need to include the path in the includes section of the compiler options.
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Thank you for your reply. But there are still some problem in my project. I am now using Nios II EDS 9.1. I am trying to include the paths of my folders into the project, but I am not sure my operation is right. After opening 'properities', I click 'Nios II Application Paths' and add the paths of my folders to the section of 'Application include directories'. Then I build the project, and it show some errors. Like, undefined reference to 'main'. I had specified a main function in the folder but the compiler cannot detect it. What can I do to deal with the problem?

    Thanks a lot!
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    It sounds like you're probably creating your Include paths correctly. 'Undefined reference to main' sounds more like a linker error than a compiler error. Make sure your main.c (or whatever file your main is in) compiles correctly. If it doesn't, you won't have a main.o file and the linker will fail.