herokuでデプロイしようとしたらFailed to install gems via Bundlerと出る。

herokuでデプロイしようとしたのですが、Failed to install gems via Bundlerと出ます。

　色々調べ、bundlerのバージョンが合ってないのではと思い、バージョンを変更したりしましたが、ずっと同じエラーです。

Run bundle install elsewhere and add the updated Gemfile.lock to version control.

とあるので、bundle installをし、updateもしました。

　gitでコミット・プッシュできていないのではと思い、コミット・プッシュもしましたが、解決しません。

　データベースはPostgreSQLに設定してあります。

　アプリのurlを入力すると、Welcome to your new app!と表示さる状態です。

　他に考えられる原因等あれば、ご教授ください。

git
1Enumerating objects: 781, done.
2Counting objects: 100% (781/781), done.
3Compressing objects: 100% (736/736), done.
4Writing objects: 100% (781/781), 17.00 MiB | 14.37 MiB/s, done.
5Total 781 (delta 429), reused 0 (delta 0)
6remote: Compressing source files... done.
7remote: Building source:
8remote: 
9remote: -----> Building on the Heroku-18 stack
10remote: -----> Determining which buildpack to use for this app
11remote:  !     Warning: Multiple default buildpacks reported the ability to handle this app. The first buildpack in the list below will be used.
12remote:                         Detected buildpacks: Ruby,Node.js
13remote:                         See https://devcenter.heroku.com/articles/buildpacks#buildpack-detect-order
14remote: -----> Ruby app detected
15remote: -----> Installing bundler 1.17.3
16remote: -----> Removing BUNDLED WITH version in the Gemfile.lock
17remote: -----> Compiling Ruby/Rails
18remote: -----> Using Ruby version: ruby-2.5.3
19remote: -----> Installing dependencies using bundler 1.17.3
20remote:        Running: BUNDLE_WITHOUT='development:test' BUNDLE_PATH=vendor/bundle BUNDLE_BIN=vendor/bundle/bin BUNDLE_DEPLOYMENT=1 BUNDLE_GLOBAL_PATH_APPENDS_RUBY_SCOPE=1 bundle install -j4
21remote:        You are trying to install in deployment mode after changing
22remote:        your Gemfile. Run `bundle install` elsewhere and add the
23remote:        updated Gemfile.lock to version control.
24remote:        
25remote:        If this is a development machine, remove the /tmp/build_18756f12/Gemfile freeze 
26remote:        by running `bundle install --no-deployment`.
27remote:        
28remote:        You have deleted from the Gemfile:
29remote:        * pry-byebug
30remote:        * pry-doc
31remote:        * pry-rails
32remote:        Bundler Output: You are trying to install in deployment mode after changing
33remote:        your Gemfile. Run `bundle install` elsewhere and add the
34remote:        updated Gemfile.lock to version control.
35remote:        
36remote:        If this is a development machine, remove the /tmp/build_18756f12/Gemfile freeze 
37remote:        by running `bundle install --no-deployment`.
38remote:        
39remote:        You have deleted from the Gemfile:
40remote:        * pry-byebug
41remote:        * pry-doc
42remote:        * pry-rails
43remote: 
44remote:  !
45remote:  !     Failed to install gems via Bundler.
46remote:  !
47remote:  !     Push rejected, failed to compile Ruby app.
48remote: 
49remote:  !     Push failed
50remote:  !
51remote:  ! ## Warning - The same version of this code has already been built: 18d6a6f1ad11144a86a1686ddb07289219856d21
52remote:  !
53remote:  ! We have detected that you have triggered a build from source code with version 18d6a6f1ad11144a86a1686ddb07289219856d21
54remote:  ! at least twice. One common cause of this behavior is attempting to deploy code from a different branch.
55remote:  !
56remote:  ! If you are developing on a branch and deploying via git you must run:
57remote:  !
58remote:  !     git push heroku <branchname>:main
59remote:  !
60remote:  ! This article goes into details on the behavior:
61remote:  !   https://devcenter.heroku.com/articles/duplicate-build-version
62remote: 
63remote: Verifying deploy...
64remote: 
65remote: !       Push rejected to fingout.
66remote: 
67 ! [remote rejected] main -> main (pre-receive hook declined)