**System Information**
Windows 10 64bit, MSI GeForce 730
**Blender Version**
Broken: 2.77a abf6f08
Worked: 2.77
**Short description of error**
Using Node Wrangler switch node shortcut shift-s, or menu causes a traceback error as shown below. The replaced node still seems to work fine... Doesn't seem to have problems, although the popup is rather annoying.
{F301697}