Zolos1082

I am doing the mission haul TR-5 "flea" soild fuel booster onto flight above kerbin Requirements Have tr-5 flea soild fuel booster Kerbin Flying Alt: 32,000m to 37,000m Spd:330.0m/s to 470.0m/s It will say I have all the requirements besides the "Have tr-5 flea soild fuel booster" one. I've tried attaching it in what seems to be every way possible but I guess I'm missing something. Please help