On Tue, Jul 13, 2010 at 10:58 AM, ibwood wrote: > Sure, I want to create a shared library. When I try to run the same node, > another shared object file is coming up with problems. Here is the error: > > error while loading shared libraries: > libboost_thread-gcc42-mt-1_37.so.1.37.0: cannot open shared object file: No > such file or directory > > The thing with the first file i specified (libroslib.so) was that it > existed, this one does not, or I have no idea on the location of it. I have > searched online but I am not finding the required information, such as what > is in the file, or how to create it properly. hi Ian, It looks like something didn't link against Boost properly. That shouldn't be the case, but it can happen. What are you trying to run? Can you post the CMakeLists.txt for your package? brian.