herokuでデプロイする際エラーが発生

前提・実現したいこと

herokuにデプロイした際

To https://git.heroku.com/アプリ名.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/アプリ名.git'

と出ておりデプロイできない状況。

発生している問題・エラーメッセージ

heroku　logをし見てみるとhttps://dashboard.heroku.com/apps/9b40da25-2b33-4fe1-b369-780c23420d29/activity/builds/b8bf9448-9b97-47c7-969b-701b6caea2a2
このようなURLがでてきたのでエラー文を確認してみてた。

 resolve '../map' in '/tmp/build_6707636b/app/javascript/packs'
         using description file: /tmp/build_6707636b/package.json (relative path: ./app/javascript/packs)
           Field 'browser' doesn't contain a valid alias configuration
           using description file: /tmp/build_6707636b/package.json (relative path: ./app/javascript/map)
             no extension
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map doesn't exist
             .mjs
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.mjs doesn't exist
             .js
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.js doesn't exist
             .sass
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.sass doesn't exist
             .scss
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.scss doesn't exist
             .css
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.css doesn't exist
             .module.sass
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.module.sass doesn't exist
             .module.scss
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.module.scss doesn't exist
             .module.css
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.module.css doesn't exist
             .png
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.png doesn't exist
             .svg
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.svg doesn't exist
             .gif
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.gif doesn't exist
             .jpeg
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.jpeg doesn't exist
             .jpg
               Field 'browser' doesn't contain a valid alias configuration
               /tmp/build_6707636b/app/javascript/map.jpg doesn't exist
             as directory
               /tmp/build_6707636b/app/javascript/map doesn't exist
       
 !
 !     Precompiling assets failed.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed

該当のソースコード

app/javascript/pacsがエラーが出ていると思い。どこがエラーか探してみたがわからない。。。

// This file is automatically compiled by Webpack, along with any other files
// present in this directory. You're encouraged to place your actual application logic in
// a relevant structure within app/javascript and only use these pack files to reference
// that code so it'll be compiled.

require("@rails/ujs").start()
require("turbolinks").start()
require("@rails/activestorage").start()
require("channels")
//= require jquery3
//= require popper
//= require bootstrap-sprockets

// Uncomment to copy all static images under ../images to the output folder and reference
// them with the image_pack_tag helper in views (e.g <%= image_pack_tag 'rails.png' %>)
// or the `imagePath` JavaScript helper below.
//
// const images = require.context('../images', true)
// const imagePath = (name) => images(name, true)
import 'bootstrap';
import '../stylesheets/application';