Type is known, but method refers to missing type
<p>I'm not very experienced with java and Eclipse and I'm getting the following problem:</p>

<p>I'm writing something like:</p>

<pre><code>Point3D myPoint = myClass.myMethod(arg);
</code></pre>

<p>And I got the error:</p>

<blockquote>
  <p>the method myMethod(myType arg) refers to the missing type Point3D.</p>
</blockquote>

<p>However the class <code>Point3D</code> is known, I can create an object of this type (<code>Point3D</code>) without error and I got <code>Point3D</code> methods from auto-completion.</p>