##MySQLの調子が悪かったのでアンインストールして再インストール
gem uninstall mysql2
gem install mysql2
- エラーが発生
Fetching mysql2 0.5.3
Installing mysql2 0.5.3 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /home/takumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/mysql2-0.5.3/ext/mysql2
/home/takumi/.rbenv/versions/2.5.1/bin/ruby -r ./siteconf20200619-26162-iq2nwv.rb extconf.rb --with-ldflags=-L/usr/local/opt/openssl/lib
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_wait_for_single_fd()... yes
checking for -lmysqlclient... no
-----
mysql client is missing. You may need to 'sudo apt-get install libmariadb-dev', 'sudo apt-get install libmysqlclient-dev' or 'sudo yum install mysql-devel', and try again.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/home/takumi/.rbenv/versions/2.5.1/bin/$(RUBY_BASE_NAME)
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysql-config
--without-mysql-config
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysqlclientlib
--without-mysqlclientlib
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/home/takumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-linux/2.5.0/mysql2-0.5.3/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /home/takumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/mysql2-0.5.3 for inspection.
Results logged to /home/takumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-linux/2.5.0/mysql2-0.5.3/gem_make.out
An error occurred while installing mysql2 (0.5.3), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.5.3' --source 'https://rubygems.org/'` succeeds before bundling.
In Gemfile:
mysql2
言われた通り下記のコマンドを実行してもエラーが発生した。
gem install mysql2 -v '0.5.3' --source 'https://rubygems.org/'
##解決策
mysql client is missing. You may need to 'sudo apt-get install libmariadb-dev', 'sudo apt-get install libmysqlclient-dev' or 'sudo yum install mysql-devel', and try again.
エラー文にある、この中の'sudo yum install mysql-devel'を実行した。
$ sudo yum install mysql-devel
読み込んだプラグイン:extras_suggestions, langpacks, priorities, update-motd
amzn2-core | 3.7 kB 00:00:00
amzn2extra-docker | 3.0 kB 00:00:00
amzn2extra-nginx1 | 1.8 kB 00:00:00
mysql-connectors-community | 2.5 kB 00:00:00
mysql-tools-community | 2.5 kB 00:00:00
mysql57-community | 2.5 kB 00:00:00
nodesource | 2.5 kB 00:00:00
33 packages excluded due to repository priority protections
依存性の解決をしています
--> トランザクションの確認を実行しています。
---> パッケージ mysql-community-devel.x86_64 0:5.7.30-1.el7 を インストール
--> 依存性解決を終了しました。
依存性を解決しました
==========================================================================================================================================================================================================
Package アーキテクチャー バージョン リポジトリー 容量
==========================================================================================================================================================================================================
インストール中:
mysql-community-devel x86_64 5.7.30-1.el7 mysql57-community 3.7 M
トランザクションの要約
==========================================================================================================================================================================================================
インストール 1 パッケージ
総ダウンロード容量: 3.7 M
インストール容量: 20 M
Is this ok [y/d/N]: y
Downloading packages:
mysql-community-devel-5.7.30-1.el7.x86_64.rpm | 3.7 MB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
インストール中 : mysql-community-devel-5.7.30-1.el7.x86_64 1/1
検証中 : mysql-community-devel-5.7.30-1.el7.x86_64 1/1
インストール:
mysql-community-devel.x86_64 0:5.7.30-1.el7
完了しました!
bundle installを実行。無事通りました！
$ bundle install
~~
Bundle complete! 37 Gemfile dependencies, 136 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.