title: Compile error in eclipse for c++
body: <p>First of all, I'm new to Linux OS.</p>
  
  <p>I installed <code>ubuntu</code> and <code>eclipse</code> and the <code>c/c++</code> package.</p>
  
  <p>I started a new project, that is the default project, "Hello World c++ project",
  and when I run it, it's given me the erorr:</p>
  
  <pre><code>Description     Resource    Path    Location    Type
  Program "g++" not found in PATH         Preferences, C++/Build/Settings/Discovery, [CDT GCC Builtin Compiler Settings] options  C/C++ Scanner Discovery Problem
  </code></pre>
  
  <p>What should I do?</p>