herokuのデプロイはできているのに「We're sorry, but something went wrong.(500)」が表示されます。

Question

環境

• ruby:2.6.3p62 (2019-04-16 revision 67580) [x86_64-linux]
• rails:6.0.3

解決したいこと

rails tutorisl5章の終わりでherokuにデプロイするところで詰まっています。
herokuにデプロイはされているのですが、いざ開いてみると「We're sorry, but something went wrong.」と表示されます。

現状

git push heroku　

development.log

Started GET "/" for 60.64.7.197 at 2021-10-09 01:36:55 +0000
Cannot render console from 60.64.7.197! Allowed networks: 127.0.0.0/127.255.255.255, ::1
   (4.6ms)  SELECT sqlite_version(*)
Processing by ApplicationController#hello as HTML
  Rendering html template
  Rendered html template (Duration: 0.0ms | Allocations: 5)
Completed 200 OK in 11ms (Views: 6.8ms | ActiveRecord: 0.0ms | Allocations: 1809)

Started GET "/" for 60.64.7.197 at 2021-10-09 01:36:56 +0000
Cannot render console from 60.64.7.197! Allowed networks: 127.0.0.0/127.255.255.255, ::1
Processing by ApplicationController#hello as HTML
  Rendering html template
  Rendered html template (Duration: 0.0ms | Allocations: 3)
Completed 200 OK in 2ms (Views: 1.6ms | ActiveRecord: 0.0ms | Allocations: 292)

Started GET "/" for 60.64.7.197 at 2021-10-09 01:46:56 +0000
Cannot render console from 60.64.7.197! Allowed networks: 127.0.0.0/127.255.255.255, ::1
   (0.1ms)  SELECT sqlite_version(*)
Processing by ApplicationController#hello as HTML
  Rendering html template
  Rendered html template (Duration: 0.0ms | Allocations: 3)
Completed 200 OK in 3ms (Views: 2.1ms | ActiveRecord: 0.0ms | Allocations: 451)

Started GET "/static_pages/home" for 60.64.7.197 at 2021-10-09 01:48:10 +0000
Cannot render console from 60.64.7.197! Allowed networks: 127.0.0.0/127.255.255.255, ::1
Processing by StaticPagesController#home as HTML
  Rendering static_pages/home.html.erb within layouts/application
  Rendered static_pages/home.html.erb within layouts/application (Duration: 1.5ms | Allocations: 365)
[Webpacker] Compiling…
[Webpacker] Compiled all packs in /home/ubuntu/environment/tweet2/public/packs
[Webpacker] warning ../../package.json: No license field
One CLI for webpack must be installed. These are recommended choices, delivered as separate packages:
 - webpack-cli (https://github.com/webpack/webpack-cli)
   The original webpack full-featured CLI.
We will use "yarn" to install the CLI via "yarn add -D".
Do you want to install 'webpack-cli' (yes/no): 
[Webpacker] 
Completed 500 Internal Server Error in 1540ms (ActiveRecord: 0.0ms | Allocations: 714993)

heroku logs -t

2021-10-13T12:51:20.000000+00:00 app[api]: Build started by user ~@gmail.com
2021-10-13T12:52:06.196176+00:00 app[api]: Deploy 2fa80624 by user ~@gmail.com
2021-10-13T12:52:06.196176+00:00 app[api]: Release v22 created by user ~@gmail.com
2021-10-13T12:52:08.912008+00:00 heroku[web.1]: State changed from down to starting
2021-10-13T12:52:13.262848+00:00 heroku[web.1]: Starting process with command `bundle exec puma -C config/puma.rb`
2021-10-13T12:52:14.370997+00:00 app[web.1]: Puma starting in single mode...
2021-10-13T12:52:14.371036+00:00 app[web.1]: * Version 4.3.6 (ruby 2.7.4-p191), codename: Mysterious Traveller
2021-10-13T12:52:14.371037+00:00 app[web.1]: * Min threads: 5, max threads: 5
2021-10-13T12:52:14.371037+00:00 app[web.1]: * Environment: production
2021-10-13T12:52:15.000000+00:00 app[api]: Build succeeded
2021-10-13T12:52:17.121584+00:00 app[web.1]: * Listening on tcp://0.0.0.0:18528
2021-10-13T12:52:17.121821+00:00 app[web.1]: Use Ctrl-C to stop
2021-10-13T12:52:17.190858+00:00 heroku[web.1]: State changed from starting to up
2021-10-13T12:52:19.996257+00:00 app[web.1]: I, [2021-10-13T12:52:19.996156 #4]  INFO -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518] Started GET "/" for 60.64.7.197 at 2021-10-13 12:52:19 +0000
2021-10-13T12:52:19.999126+00:00 app[web.1]: I, [2021-10-13T12:52:19.999043 #4]  INFO -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518] Processing by StaticPagesController#home as HTML
2021-10-13T12:52:20.009011+00:00 app[web.1]: I, [2021-10-13T12:52:20.008931 #4]  INFO -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518]   Rendering static_pages/home.html.erb within layouts/application
2021-10-13T12:52:20.010211+00:00 app[web.1]: I, [2021-10-13T12:52:20.010140 #4]  INFO -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518]   Rendered static_pages/home.html.erb within layouts/application (Duration: 1.0ms | Allocations: 284)
2021-10-13T12:52:20.013181+00:00 app[web.1]: I, [2021-10-13T12:52:20.013128 #4]  INFO -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518] Completed 500 Internal Server Error in 13ms (Allocations: 2347)
2021-10-13T12:52:20.013882+00:00 heroku[router]: at=info method=GET path="/" host= ~.herokuapp.com request_id=b7dba1f4-0c8e-408b-80eb-3f302a024518 fwd="60.64.7.197" dyno=web.1 connect=0ms service=20ms status=500 bytes=1827 protocol=https
2021-10-13T12:52:20.014340+00:00 app[web.1]: F, [2021-10-13T12:52:20.014259 #4] FATAL -- : [b7dba1f4-0c8e-408b-80eb-3f302a024518]
2021-10-13T12:52:20.014341+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518] ActionView::Template::Error (Webpacker can't find application in /app/public/packs/manifest.json. Possible causes:
2021-10-13T12:52:20.014342+00:00 app[web.1]: 1. You want to set webpacker.yml value of compile to true for your environment
2021-10-13T12:52:20.014342+00:00 app[web.1]: unless you are using the `webpack -w` or the webpack-dev-server.
2021-10-13T12:52:20.014343+00:00 app[web.1]: 2. webpack has not yet re-run to reflect updates.
2021-10-13T12:52:20.014343+00:00 app[web.1]: 3. You have misconfigured Webpacker's config/webpacker.yml file.
2021-10-13T12:52:20.014344+00:00 app[web.1]: 4. Your webpack configuration is not creating a manifest.
2021-10-13T12:52:20.014345+00:00 app[web.1]: Your manifest contains:
2021-10-13T12:52:20.014345+00:00 app[web.1]: {
2021-10-13T12:52:20.014345+00:00 app[web.1]: }
2021-10-13T12:52:20.014346+00:00 app[web.1]: ):
2021-10-13T12:52:20.014346+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]      6:     <%= csp_meta_tag %>
2021-10-13T12:52:20.014346+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]      7:     <%= stylesheet_link_tag    'application', media: 'all',
2021-10-13T12:52:20.014351+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]      8:                                'data-turbolinks-track': 'reload' %>
2021-10-13T12:52:20.014352+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]      9      <%= javascript_pack_tag 'application',
2021-10-13T12:52:20.014352+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]     10:                                'data-turbolinks-track': 'reload' %>
2021-10-13T12:52:20.014352+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]     11:     <%= render 'layouts/shim' %>
2021-10-13T12:52:20.014352+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]     12:   </head>
2021-10-13T12:52:20.014353+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518]
2021-10-13T12:52:20.014353+00:00 app[web.1]: [b7dba1f4-0c8e-408b-80eb-3f302a024518] app/views/layouts/application.html.erb:9
2021-10-13T12:52:20.303090+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=~.herokuapp.com request_id=3f37830e-7988-425b-a4b2-e39ed7862d70 fwd="60.64.7.197" dyno=web.1 connect=0ms service=5ms status=200 bytes=143 protocol=https

試したこと

• この前にもherokuにpushしたときに、以下のメッセージがあったのでyarn add webpack-cli -Dを実行しましたが、今回もこのメッセージが表示されました。

One CLI for webpack must be installed. These are recommended choices, delivered as separate packages:

    （省略）
   Do you want to install 'webpack-cli' (yes/no): 

• 似たような状況に遭遇した方々の記事などを参考に、$ heroku run rails db:migrateを実行しましたが結果は変わりませんでした。

Comments

[winterboum]

logが画像だと検索もできないし、読みにくいし。
それに大切な情報が上の方、切れてる。
もっと上からtextで貼ってください
それと、
localで動いてます？ development.logでも500出てるみたいですが

[ohno_]

コメントありがとうございます。
配慮が足りませんでした、申し訳ございません。

logは後ほど帰宅し次第、テキストで掲載いたします。

現時点でアプリはローカルではしっかりと動いています。

Answer 1

javascript_pack_tag 'application'
でエラーがでています。assetesの precompileをしていないか、失敗しているか、ですね。