Hi Ruslan, I downloaded the release of V4RB UB and installed it. I dragged V4RB.rbx to the plug-ins folder. But when I compile in the IDE -> crash on launch (no crash report is generated). FWIW, I don't see this path /usr/local/lib/vcomponents I probably don't know where I should be looking in the Finder (I click on usr, but see no folder called Local). Jon