title: What does this Ghostscript error message mean?
body: <p>I get this error message from a Ghostscript call:</p>
  
  <pre><code>Error: /syntaxerror in -file-
  Operand stack:
  
  Execution stack:
     %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--     2   %stopped_push   --nostringval--
    --nostringval--   --nostringval--   false   1   %stopped_push   1926   1   3   %oparray_pop   1925   1   3   %oparray_
  pop   1909   1   3   %oparray_pop   1803   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostr
  ingval--   --nostringval--   --nostringval--   2   %stopped_push
  Dictionary stack:
     --dict:1169/1684(ro)(G)--   --dict:0/20(G)--   --dict:77/200(L)--
  Current allocation mode is local
  Current file position is 215
  GPL Ghostscript 9.05: Unrecoverable error, exit code 1
  </code></pre>
  
  <p>Does it mean that there is problem in the input Postscript file or does it mean something is wrong with my call or the installation?</p>
  
  <p>The call was:</p>
  
  <pre><code>ps2pdf book.ps book.pdf
  </code></pre>
  
  <p>The input file book.ps exists in the current directory.</p>
  
  <p>Is there a list of Ghostscript error messages and what they mean somewhere? (Google was not my friend in this case.)</p>