Monthly Archives: October 2014

Installing igraph (0.7.1) in Visual Studio 2013

I have installed igraph (0.7.1) in Visual Studio 2013. The following are some errors during the installation and how to fix it.

– Error C2065: ‘prpack_igraph_graph’ : undeclared identifier.

Solution: Adding a compiler option. Open Project menu -> Properties -> C/C++ -> Command Line. In Additional options, add the following option: /DPRPACK_IGRAPH_SUPPORT=1

When compiling igraphtest:

– Error LNK1181: cannot open input file ‘igraph.lib’. Solution: Adding a path to the directory containing ‘igraph.lib’. Open Project -> Properties -> VC++ Directory -> Library Directory -> Edit. Add new path which points to the Release directory in the igraph directory.

– error LNK2005: _free already defined in LIBCMTD.lib(dbgfree.obj)
 Project -> Properties -> Configuration Properties -> C/C++ -> Code generation.
Set Runtime Library = Multi-threaded (/MT)