title: What this CMake Error means? My variables are set to NOTFOUND
body: <p>I am trying to run some code from my university, but when I do "cmake .." inside "build" I get the following error:</p>
  
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  <blockquote>
    <p>CMake Error: The following variables are used in this project, but
    they are set to NOTFOUND. Please set them or make sure they are set
    and tested correctly in the CMake files: iceutil_lib
        linked by target "cppgui" in directory /Users/alej/Desktop/project1
        linked by target "project1" in directory /Users/alej/Desktop/project1</p>
    
    <p>-- Configuring incomplete, errors occurred!</p>
  </blockquote>
  
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  <p>Any of my friends are getting errors, can you help me?</p>