Command exceptions for wrong entity types or count don't fit with the error position indicator because the messages are ending with a period.
|Translation key||Message||Command to reproduce|
|argument.entity.toomany||Only one entity is allowed, but the provided selector allows more than one.|
|argument.player.toomany||Only one player is allowed, but the provided selector allows more than one.||/data get entity @e see
|argument.player.entities||Only players may be affected by this command, but the provided selector includes entities.||/gamemode survival @e|