Using eclipse for Prolog
<p>I have to use eclipse (with ProDT) for running swi-prolog. I installed ProDT via <code>help-&gt;install new software</code>, opened the prolog perspective, made a new prolog project and a new file called <code>HelloProlog.pl</code> with the lines I was given:</p>

<pre><code>% helloprolog.pl
hello :- write('Hello Prolog World!').
</code></pre>

<p>Then whenever I tried to run the file (by pressing the green play button) I got the message <code>Unable to launch; The selection cannot be launched, and there are no recent launches.</code></p>

<p>I did check <code>Windows-&gt;Preferences-&gt;Prolog-&gt;Interpreters</code> and added the <code>swipl.exe</code> of the swi-prolog directory, but nothing changed.</p>

<p>I suspect the problem is that there are no <em>Run configurations</em> for Prolog (Prolog is not in that list), but I have now idea how to set those up. </p>

<p>Can anyone tell me what I'm doing wrong?</p>