Distance command and tag command not working [duplicate]

Solution 1:

r and rm have now become a range called distance. For example:

  • @a[distance=..5] selects people 5 meters or closer
  • @a[distance=2..6] selects people 2 to 6 meters away
  • @a[distance=7..] select people 7 meters or further away

The replacement for testfor depends on what you were using it for, but the closest equivalent for most cases would be execute if entity. For example:

execute if entity @a[distance=..3] run say Someone is within 3 blocks!