【ScriptAPI】UIの表示でエラーが出たときの対処法【マイクラ統合版】

import * as server from '@minecraft/server';
import * as ui from '@minecraft/server-ui';

//ここにスクリプトを記述

function show_form(player){
    const form = new ui.ActionFormData();
    form.title("Test GUI");
    form.button("Test Button");
    form.button("Test Button 2");
    form.show(player).then((response) => {
        switch(response.selection){
            case 0:
                player.sendMessage("You clicked Test Button!");
                break;
            case 1:
                player.sendMessage("You clicked Test Button 2!");
                break;
            default:
                player.sendMessage("You clicked an unknown button!");
                break;
        }
    }).catch(error =>
        player.sendMessage("An error occurred: " + error.message)
    );
}

server.world.afterEvents.itemUse.subscribe(ev => {
    if (ev.itemStack.typeId == "minecraft:stick"){
        let player = ev.source;
        show_form(player);
    }
});