Module not found: Error: Can't resolve 'XX' in 'エラー

Question

Laravelのルートディレクトリでローカルサーバーを立ち上げ、
$npm run watchで下記のエラーになりました。
「Module not found: Error: Can't resolve 'XX' in '」の対処がわからないので教えて下さい。

@ watch /Users/yutaro/laravel_vue_quiz00
npm run development -- --watch

@ development /Users/yutaro/laravel_vue_quiz00
cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js "--watch"

10% building 3/3 modules 0 active
webpack is watching the files…

98% after emitting SizeLimitsPlugin

ERROR Failed to compile with 8 errors

These dependencies were not found:

• vue in ./resources/js/quiz.js, ./resources/js/app.js and 2 others
• vue-chartjs in ./node_modules/babel-loader/lib??ref--4-0!./node_modules/vue-loader/lib??vue-loader-options!./resources/js/components/module/BarChart.vue?vue&type=script&lang=js&
• vue-social-sharing in ./resources/js/quiz.js, ./resources/js/app.js and 1 other

To install them, you can run: npm install --save vue vue-chartjs vue-social-sharing
Asset Size Chunks Chunk Names
/css/app.css 0 bytes /js/home [emitted] /js/home
/js/app.js 143 KiB /js/app [emitted] /js/app
/js/home.js 55.7 KiB /js/home [emitted] /js/home
/js/quiz.js 49.4 KiB /js/quiz [emitted] /js/quiz

ERROR in ./resources/js/quiz.js
Module not found: Error: Can't resolve 'vue' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/quiz.js 1:0-22 4:0-3 5:4-7
@ multi ./resources/js/quiz.js

ERROR in ./resources/js/app.js
Module not found: Error: Can't resolve 'vue' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/app.js 1:0-22 4:0-3 5:4-7
@ multi ./resources/js/app.js

ERROR in ./resources/js/home.js
Module not found: Error: Can't resolve 'vue' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/home.js 1:0-22 4:0-3 5:4-7
@ multi ./resources/js/home.js ./resources/sass/app.scss

ERROR in ./resources/js/router.js
Module not found: Error: Can't resolve 'vue' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/router.js 1:0-22 5:0-3
@ ./resources/js/app.js
@ multi ./resources/js/app.js

ERROR in ./resources/js/components/module/BarChart.vue?vue&type=script&lang=js& (./node_modules/babel-loader/lib??ref--4-0!./node_modules/vue-loader/lib??vue-loader-options!./resources/js/components/module/BarChart.vue?vue&type=script&lang=js&)
Module not found: Error: Can't resolve 'vue-chartjs' in '/Users/yutaro/laravel_vue_quiz00/resources/js/components/module'
@ ./resources/js/components/module/BarChart.vue?vue&type=script&lang=js& (./node_modules/babel-loader/lib??ref--4-0!./node_modules/vue-loader/lib??vue-loader-options!./resources/js/components/module/BarChart.vue?vue&type=script&lang=js&) 1:0-34 3:13-16
@ ./resources/js/components/module/BarChart.vue?vue&type=script&lang=js&
@ ./resources/js/components/module/BarChart.vue
@ ./node_modules/babel-loader/lib??ref--4-0!./node_modules/vue-loader/lib??vue-loader-options!./resources/js/components/page/Home.vue?vue&type=script&lang=js&
@ ./resources/js/components/page/Home.vue?vue&type=script&lang=js&
@ ./resources/js/components/page/Home.vue
@ ./resources/js/home.js
@ multi ./resources/js/home.js ./resources/sass/app.scss

ERROR in ./resources/js/quiz.js
Module not found: Error: Can't resolve 'vue-social-sharing' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/quiz.js 3:0-47 4:8-21
@ multi ./resources/js/quiz.js

ERROR in ./resources/js/app.js
Module not found: Error: Can't resolve 'vue-social-sharing' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/app.js 3:0-47 4:8-21
@ multi ./resources/js/app.js

ERROR in ./resources/js/home.js
Module not found: Error: Can't resolve 'vue-social-sharing' in '/Users/yutaro/laravel_vue_quiz00/resources/js'
@ ./resources/js/home.js 3:0-47 4:8-21
@ multi ./resources/js/home.js ./resources/sass/app.scss
[Browsersync] Proxying: http://localhost:8000

[Browsersync] Access URLs:

   Local: http://localhost:3000
External: http://192.168.3.3:3000

---

      UI: http://localhost:3001

UI External: http://localhost:3001
[Browsersync] Watching files...