More descriptive exception when an extension class is not found
More descriptive exception when an extension class is not found

bolt/bolt,nikgo/bolt,romulo1984/bolt,nikgo/bolt,lenvanessen/bolt,nikgo/bolt,GawainLynch/bolt,GawainLynch/bolt,nikgo/bolt,romulo1984/bolt,bolt/bolt,romulo1984/bolt,bolt/bolt,lenvanessen/bolt,lenvanessen/bolt,romulo1984/bolt,lenvanessen/bolt,GawainLynch/bolt,bolt/bolt,GawainLynch/bolt