title: *** No rule to make target 'class.cpp', needed by `build/....x86/class.o` Stop. error in Ubuntu
body: <p>I got this error trying to build and compile my program. Now I can't open all my .cpp files in my program.</p>
  
  <blockquote>
    <p>make[2]: <em>*</em> No rule to make target <code>Checker.cpp', needed by
    </code>build/Debug/GNU-Linux-x86/Checker.o'.  Stop.</p>
  </blockquote>
  
  <p>Anyone can help me with this? I have checked all the online sources but I can't seem to find a solution. I desperately need this solved. Appreciate any help given.</p>