Why does clickevent in minecraft not work

Solution 1:

You have two things missing or wrong.

  • "text":"Kill all people?""color":"green" is invalid JSON - it's missing a comma
  • clickEvent uses the action run_command to execute commands

Taking both into account this will work assuming you're using the latest version of Minecraft:

/tellraw @a {"text":"Kill all people?","color":"green","clickEvent":{"action":"run_command","value":"/kill @a"}}