title: Cannot find external descriptions for DSPF in RPG IV
body: <p>I have a server running IBM i 7.2 (no PTFs), which I am using to learn the system. I attempted to create a application with a single RPGLE source (CALCR) and a DSPF (CALCD) with a single record. However, when compiling the RPG code (via PDM) I get a error regarding the DSPF.</p>
  
  <pre><code>*RNF2120 40 a      000200  External descriptions for file CALCD not found; file is 
                             ignored.                                                
  </code></pre>
  
  <p>The code is very simple as you can see below.</p>
  
  <pre><code>        *************** Beginning of data *********************************************
  0001.00 H                                                                              
  0002.00 FCALCD     CF   E             WORKSTN                                          
  0003.00 C                   EVAL      *INLR = *ON                                      
          ****************** End of data ************************************************
  </code></pre>
  
  <p>The DSPF is "compiled" and exists in the same library as my RPG code. I also tested the same code on PUB400 and encountered no error. I'm thinking there is something wrong with the stock configuration of my IBM I installation.</p>