Bitnami Redmineにredmine_backlogsをインストールしたいのですが、エラーになり困っています

Question

前提

Windows10Pro 64bit, Virual Box 6.1.6 で Redmine環境を構築しています。
Redmine環境についてはBitnami Redmine 5.0.3-6(Debian11)で構築しました。
現在Pluginを導入して拡張させていっているのですが、
redmine_backlogs(https://github.com/ayapapa/redmine_backlogs.git -b redmine4)をbundle execしたところ、
エラーが出てしまい困っています。。。(その前にview_customizeというpluginsを入れたところ、これは成功。)
わたしがRuby初心者でエラーメッセージでググっても今一つ見当がつかないため、
これをご覧になっている有識者の方の知見をお借りしたいです。
Gitのリポジトリ自体がRedmine 4対応であるため何かしら修正いりそう？と思っているのですが、
この解決にあたり、元のPluginのソースを修正しないと厳しい、
例えば1か所ではなく数十カ所の場合はあきらめようと思っています。。。
また環境がごちゃつきすぎている(エラー情報を見て、原因の切り分けが明らかに難しい)場合は、
言ってもらえればまずは実施したいと思っています。

実現したいこと

Redmineを仮想環境で動かしたい。

• Bitnami Redmineでredmine_backlogsを動作させる。

発生している問題・エラーメッセージ

※文字数制限のため、別コメントに記載します。

試したこと

(1)パッケージインストール、アップデート
root@debian:/opt/bitnami/redmine#apt -y update && apt -y install vim ruby-full build-essential sqlite3

(2)CloneしたプラグインのGemfileに下記の変更を加える
gem "nokogiri", gem "gherkin" をコメントアウト
gem "cucumber" に続くバージョン指定 , "~> 1.2.0" をコメントアウト
#上記は別サイト参照の情報をそのまま実施。他パッケージとの競合を防ぐため？と理解しています。
#違った場合はご指摘いただければと思います。。。

(3)Rubyの下記パッケージをインストール
holidays -v 2.2.0
icalendar
open-uri-cached
prawn
json	
sidekiq	
inifile	
chronic	
ZenTest	-v 4.5.0
autotest-rails	
cucumber-rails	
culerity	
cucumber	
poltergeist	
database_cleaner	
rspec	
rspec-rails	
ruby-prof	
spork	
test-unit -v 1.2.3
timecop -v 0.3.5
thin

(4)インストール実施
root@debian:/opt/bitnami/redmine#RAILS_ENV=production bundle exec rake redmine:plugins:migrate

※現状のRedmine詳細情報
root@debian:/opt/bitnami/redmine# ruby bin/about

sh: 1: hg: not found
sh: 1: cvs: not found
sh: 1: bzr: not found
Environment:
  Redmine version                5.0.3.stable
  Ruby version                   3.0.4-p208 (2022-04-12) [x86_64-linux]
  Rails version                  6.1.7
  Environment                    production
  Database adapter               Mysql2
  Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
  Mailer delivery                smtp
Redmine settings:
  Redmine theme                  Default
SCM:
  Subversion                     1.14.2
  Git                            2.30.2
  Filesystem
Redmine plugins:
  view_customize                 3.1.0

補足情報（FW/ツールのバージョンなど）

必要な情報があればコメントください。
またRubyに疎いため、やっていることの意味がいまひとつわかっておらず、
辻褄があっていない部分有るかと思います。
申し訳ありませんが、大目に見ていただけると助かります。。。
(bundle, rake, gem等々 勉強中ですorz)

Comments

[jungle_tori]

### 発生している問題・エラーメッセージ

root@debian:/opt/bitnami/redmine# pwd
/opt/bitnami/redmine
root@debian:/opt/bitnami/redmine# RAILS_ENV=production bundle exec rake redmine:plugins:migrate
== 15 OrderTasksUsingTree: migrating ==========================================
rake aborted!
StandardError: An error has occurred, all later migrations canceled:

uninitialized constant RbTask::Backlogs
Did you mean? BacklogsSetup
/opt/bitnami/redmine/plugins/redmine_backlogs/app/models/rb_task.rb:7:in `tracker'
/opt/bitnami/redmine/plugins/redmine_backlogs/db/migrate/015_order_tasks_using_tree.rb:22:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:830:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:870:in `public_send'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:870:in `exec_migration'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:851:in `block (2 levels) in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:850:in `block in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:849:in `migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1037:in `migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1329:in `block in execute_migration_in_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1382:in `ddl_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1328:in `execute_migration_in_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1302:in `each'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1302:in `migrate_without_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1251:in `block in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1401:in `block in with_advisory_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1416:in `block in with_advisory_lock_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1416:in `with_advisory_lock_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1397:in `with_advisory_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1251:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:468:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1061:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:500:in `migrate_plugin'
/opt/bitnami/redmine/lib/redmine/plugin.rb:441:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:455:in `block in migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:454:in `each'
/opt/bitnami/redmine/lib/redmine/plugin.rb:454:in `migrate'
/opt/bitnami/redmine/lib/tasks/redmine.rake:151:in `block (3 levels) in <top (required)>'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/bitnami/redmine/bin/bundle:113:in `load'
/opt/bitnami/redmine/bin/bundle:113:in `<main>'

Caused by:
NameError: uninitialized constant RbTask::Backlogs
Did you mean? BacklogsSetup
/opt/bitnami/redmine/plugins/redmine_backlogs/app/models/rb_task.rb:7:in `tracker'
/opt/bitnami/redmine/plugins/redmine_backlogs/db/migrate/015_order_tasks_using_tree.rb:22:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:830:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:870:in `public_send'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:870:in `exec_migration'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:851:in `block (2 levels) in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:850:in `block in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:849:in `migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1037:in `migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1329:in `block in execute_migration_in_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1382:in `ddl_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1328:in `execute_migration_in_transaction'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1302:in `each'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1302:in `migrate_without_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1251:in `block in migrate'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1401:in `block in with_advisory_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1416:in `block in with_advisory_lock_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1416:in `with_advisory_lock_connection'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1397:in `with_advisory_lock'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1251:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:468:in `up'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/activerecord-6.1.7/lib/active_record/migration.rb:1061:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:500:in `migrate_plugin'
/opt/bitnami/redmine/lib/redmine/plugin.rb:441:in `migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:455:in `block in migrate'
/opt/bitnami/redmine/lib/redmine/plugin.rb:454:in `each'
/opt/bitnami/redmine/lib/redmine/plugin.rb:454:in `migrate'
/opt/bitnami/redmine/lib/tasks/redmine.rake:151:in `block (3 levels) in <top (required)>'
/opt/bitnami/redmine/vendor/bundle/ruby/3.0.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/bitnami/redmine/bin/bundle:113:in `load'
/opt/bitnami/redmine/bin/bundle:113:in `<main>'
Tasks: TOP => redmine:plugins:migrate
(See full trace by running task with --trace)

[hoshi-takanori]

Redmine 使ってませんが、redmine_backlogs は最近メンテされてなさそうだし、Redmine 5 はまだ出たばかりみたいなので、とりあえず Redmine 4 で使うとか、直接 redmine_backlogs の作者に問い合わせるとか…。

[jungle_tori]

コメントありがとうございます。おっしゃる通りですね。Redmine4で検討しますかね…。

Answer 1

Redmine4で構築し直し、導入できました。ありがとうございました。
「UbuntuにRedmine 4.2/5.0をインストールする」という個人ブログの記事を参考にしました。
（直リンクして良いかどうか判断できなかったので、気になった方は調べてみてください。）
ここでお礼を言っても仕方ないですが、記事作成者の方見られていたら、本当にありがとうございました。。。
同じ問題に悩まれてる方がいればそちらを参照して構築してみてください。