[Therion] Metapost problem...

[thierrygonon]

Hello,

I'm using therion 0.3.11 with Mac OS X. When I try to compile my files 
(in my case, just a .th one), the result is :
####################### metapost log file ########################
therion: warning -- can't open data.log file for input
can't open data.log file for input#################### end of metapost 
log file ####################
therion: error -- metapost exit code -- 32512

The problem seems to be linked with Metapost...

What's the problem ???

Thank you very much for your help !!

Thierry