Quote from Skylinerw
That error ("UUID") will only show up in the 1.8 snapshots. It occurs when no player/entity matches the parameters, which would mean no players were found at that location. The command itself is correct and will successfully output should a player be within 5 blocks of those coordinates.
Ok it helps if I put the cords in the right spot. to bad the (~) will not work for a /testfor @p or if it dose how would one use it.