I just installed QGIS version 2.2.0-Valmiera on my mac with OS X. First I installed all required frameworks. QGIS is running, but the Grass plugin is not existing. In the toolbox the grass tools are there. Any one got an idea how to get the grass plugin running?
I had a similar issue. I was using QGIS Desktop With GRASS 7.4.1 on Windows, but for some reason, I only had and older version of GRASS.. 7.2 or something like that. I just changed from the OSGeo installer and could get to use the plugin