Hi Hengameh

The latest version of ShapeWorks only reads parameter files in the XML format and the Torus and Mickey examples have updated parameter files with them.
The '.params' parameter file format has been dispensed with. If you have source code that works with a '.params' parameter file, i suspect it is an old version and may be susceptible to errors.

i suggest you download the latest version from the NITRC repository here and try the examples again. If the problem persists, I'll be happy to help out :)

HTH
Regards
manasi