[OpenMesh] Hello , I got a bug whenever I use you library.

Hello, I am a researcher for mesh processing, and I'm using your openmesh library. thanks for your development working, but I got a bug when I run you official code, "building a cube" [http://www.openmesh.org/media/Documentations/OpenMesh-Doc-Latest/a04088.html]. No matter whether I type codes by myself or copy your example code , there will always be a bug saying that there is a unexpectation occurring, that there is visiting conflict in posision 0x00000000000000. [cid:image001.png@01D5A9F1.FBAB55E0]