r;
          for example, a rule with a skip parser type is used inside a <code class="computeroutput"><span class="identifier">lexeme</span></code> directive, or a grammar with a
          skip parser type is used in <code class="computeroutput"><span class="identifier">parse</span></code>
          instead of <code class="computeroutput"><span class="identifier">phrase_parse</span></code>,
        </li>
<li class="listitem">
          or a non-terminal is used with a skip parser of an incompatible type; f