Without details about your comp and your render settings it is impossible to help you. There are just too many options. My suggestion, use the defaults.
Thanks Rick. in digging into it a bit more, it turns out that QuickTime, flv and a few other settings are missing as options I exported the render as tif to try rendering with CC. this maverick OS could be the culprit since I have QuickTime that works with FCPX and compressor.