Hi Ashish<br><br>this often happens to me after reinstalling godi, if I forget to install one syntax extension used in my project. Instead of having a more meaningful message like &#39;missing package bidule&#39;, I&#39;ve got the message you report. Maybe you could double check whether you installed all extensions used in sequme ? <br>

<br><div class="gmail_quote">2011/10/9 Ashish Agarwal <span dir="ltr">&lt;<a href="mailto:agarwal1975@gmail.com">agarwal1975@gmail.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

<div>I get the error below after reinstalling OCaml with the latest version with GODI. My code has not changed, so I&#39;m wondering if there is a change to ocamlbuild or ocamlfind that is causing this. The issue appears to be that -package camlp4 should be included in the ocamlfind command but it is not.</div>



<div><br></div><div>The section &quot;Does Findlib support camlp4&quot; in the findlib User&#39;s Guide discusses the &#39;preprocessor&#39; variable, but I can&#39;t figure out how exactly how to adjust my META file or whether I really need to since it was working before.</div>



<div><br></div><div>ocamlbuild sequme.cma sequme.cmxa sequme.cmxs</div><div>Finished, 0 targets (0 cached) in 00:00:00.</div><div>+ ocamlfind ocamldep -package batteries -package biocaml -package netclient -package netstring -package shell -package sqlite3 -syntax camlp4o -modules sequme/bowtie.mli &gt; sequme/bowtie.mli.depends</div>



<div>ocamlfind: When using -syntax, the META variable &#39;preprocessor&#39; must be set</div><div>Command exited with code 2.</div><div><br></div><div>--- META ---</div><div><div>requires = &quot;netstring shell netclient batteries biocaml pgocaml&quot;</div>



<div>version = &quot;0.0&quot;</div><div>archive(byte) = &quot;sequme.cma&quot;</div><div>archive(native) = &quot;sequme.cmxa&quot;</div></div><div><br></div>
</blockquote></div><br>