title: Protocol Buffer: How to import?
body: <p>I have 2 .proto files :</p>
  
  <p><strong>First file:</strong></p>
  
  <pre><code>package com.test.model;
  
  message ProtoModel  {
      required CustomObj custom=1;
  }
  </code></pre>
  
  <p><strong>Second file:</strong></p>
  
  <pre><code>package com.test.model;
  
  message CustomObj {
      required string smth=1;
  }
  </code></pre>
  
  <p>The issue here is that "CustomObj"  is said to be "unresolved reference" .
  Thus, I've tried to import the second file into first file:</p>
  
  <pre><code>import "com/test/model/firstFile.proto"
  
  package com.test.model;    
  
  message ProtoModel  {
      required CustomObj custom=1;
  }
  </code></pre>
  
  <p>I still get the same issue !!</p>