/summon minecraft:villager ~ ~ ~ {{VillagerData:{profession:"minecraft:mason",type:"minecraft:plains"}} , {Offers:{Recipes:[{maxUses:2147483647,buy:{id:"minecraft:emerald",Count:1b},sell:{id:"minecraft:Block of Quartz",Count:1b}}]}}



소환이 안되는데 어디가 틀린지 모르겠음