Over time, inconsistencies/incompatibilities will develop between a recent version of a binding and the core framework in the release build. If you’re running the 2.3 release, which is quite old at this point, there may be issues installing the zwave binding from the current snapshot.
You’re probably ok installing a snapshot build. The builds are pretty stable right now, as we’re nearing the release of 2.4.
If you decide to install a recent snapshot build, please be aware that there were major changes to the zwave binding, as described here.