Siphon project is not compiling for video conferencing technology.

Question

Hi,

   I want to complile siphon for video conferencing. I have followed the steps to compile in the    link.

  http://www.blogtopsites.com/outpost/db6f49d045913a34797c4d0c87a253d4.

 Even I followed the process,it is not compiling on my iPhone simulator 4.0