title: Problems with GCC "build file: no target in no project"
body: <p>I have a problem with C. When I want to compile my sources codes, I see the message:</p>
  
  <pre><code>=== Build file: "no target" in "no project" (compiler: unknown) ===
  </code></pre>
  
  <p>The classic Hello world works, but I have this message.</p>
  
  <p><img src="https://i.stack.imgur.com/VcNAi.png" alt="enter image description here"></p>
  
  <p>I want to make a program that read all absolute directories and subdirectories recursively, print all names with 252 characters or more in a file. I use codeblocks and GNU gcc.</p>
  
  <p><img src="https://i.stack.imgur.com/h1F9x.png" alt="enter image description here"></p>