Okay, that explains it... you are correct I do not have a "Configuration Path" defined for the game. Since this is a console game I assume that is not required and not something I should be concerned with?
I still am not able to get LaunchBox to start any Neo Geo or Playstation 2 games (edit) When I try to launch the games "nothing happens" is my exact problem it was not until I hit the "configuration" button that game me the error and I found my way here. It can launch NES/SNES and I am using the same options when importing my libraries. If I open RetroArch directly and select the core and content manually the games will play that way. I have went back and changed default emulators and I have specified the PCSX2 Libreto core during import as well... but the games will still not launch. I have been editing the Platforms but I am not seeing where I can select the core to use. I assume I should start looking at the command line argument documentation for RetroArch?
While I am old school with emulators (pre-2000) and I would like to get away from managing all of them myself. I am definitely interested in getting LaunchBox to manage my library instead. So far the experience has been pretty good, but any little setting I can change to my my experience as fluid as possible would be great.