New build, front derailleur won't shift to outer cog
With the cable detached, chain on largest sprocket, set the low limit with the absolute minimum clearance from the chain. With the shifter firmly at the lowest setting (max cable payed out) attach the cable and use barrel adjusters to take any slack out so that movement of the shifter results in immediate movement of the derailleur cage. That should make sure the shifter can pull the cage far enough outboard to get over the big ring.

You may need to adjust derailleur alignment so that the tail end of the cage is toed out slightly to get it to kick the chain into the big ring.