Dear Sir I have build and installed libnice in linux(UBUNTU) machine. and its completed fine. but the problem is when i am trying to run example then it is giving error like "undefined reference to `nice_agent_get_selected_pair'" all other methods are defined but only this method is not defined . so how to resolve this because for windows the solution is given as.. for windows after making entry in EXPORTS in win/vs9/libnice.def file it is working fine . but in windows another problem is when i am running example it is unable to gather candidate even host candidate also. please help me , what may be the problem? and how to resolve above problem in linux......... Thanks Regards (Sanjeev Kumar)