mysql２がbundle installできない

Question

以下の環境で作業しています。

ruby 2.6.6
rails 5.2.4.2
MySQL 8.0

mysqlのバージョンを5.7から8.0へバージョンアップしたらbundle installでエラーが出るようになりました。

発生しているエラー

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: /Users/kawasetakuya/Taskun/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3/ext/mysql2
/Users/kawasetakuya/.rbenv/versions/2.6.6/bin/ruby -I /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/2.6.0 -r ./siteconf20200728-42562-9b37z2.rb extconf.rb
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_wait_for_single_fd()... yes
-----
Using mysql_config at /usr/local/opt/mysql/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for SSL_MODE_DISABLED in mysql.h... yes
checking for SSL_MODE_PREFERRED in mysql.h... yes
checking for SSL_MODE_REQUIRED in mysql.h... yes
checking for SSL_MODE_VERIFY_CA in mysql.h... yes
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes
checking for MYSQL.net.vio in mysql.h... yes
checking for MYSQL.net.pvio in mysql.h... no
checking for MYSQL_ENABLE_CLEARTEXT_PLUGIN in mysql.h... yes
checking for SERVER_QUERY_NO_GOOD_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_NO_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_WAS_SLOW in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_ON in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_OFF in mysql.h... yes
checking for my_bool in mysql.h... no
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/opt/mysql/lib
-----
creating Makefile

current directory: /Users/kawasetakuya/Taskun/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR=" clean

current directory: /Users/kawasetakuya/Taskun/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/kawasetakuya/Taskun/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3 for inspection.
Results logged to /Users/kawasetakuya/Taskun/vendor/bundle/ruby/2.6.0/extensions/x86_64-darwin-19/2.6.0/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

エラーに記載のある

gem install mysql2 -v '0.5.3' --source 'https://rubygems.org/'

をしたら

Failed to load /Users/kawasetakuya/.gemrc because it doesn't contain valid YAML hash
ERROR:  While executing gem ... (Errno::EACCES)
    Permission denied @ rb_sysopen - /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2-0.5.3/CHANGELOG.md

とでます。
解決方法が分からず、どなたかアドバイスをいただけますと幸いです。

Answer 1

ERROR: While executing gem ... (Errno::EACCES)
Permission denied @ rb_sysopen - /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2

パーミッションエラーが出ています。
該当するファイル・ディレクトリの所有者・権限を確認して、適切に変更してください。

ちなみに所有者はchown、権限はchmodで変更します。（OS操作の基本中の基本なのでご存知だと思いますが念のため）

Comments

[takuya861]

回答ありがとうございます！

確認しました！
所有者・権限を変更して再度bundle installをおこなったら違うエラーになりました！

```
Failed to load /Users/kawasetakuya/.gemrc because it doesn't contain valid YAML hash
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.

current directory: /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2-0.5.3/ext/mysql2
/Users/kawasetakuya/.rbenv/versions/2.6.6/bin/ruby -I /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/2.6.0 -r ./siteconf20200729-68880-asvdts.rb extconf.rb
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_wait_for_single_fd()... yes
-----
Using mysql_config at /usr/local/opt/mysql/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for SSL_MODE_DISABLED in mysql.h... yes
checking for SSL_MODE_PREFERRED in mysql.h... yes
checking for SSL_MODE_REQUIRED in mysql.h... yes
checking for SSL_MODE_VERIFY_CA in mysql.h... yes
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes
checking for MYSQL.net.vio in mysql.h... yes
checking for MYSQL.net.pvio in mysql.h... no
checking for MYSQL_ENABLE_CLEARTEXT_PLUGIN in mysql.h... yes
checking for SERVER_QUERY_NO_GOOD_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_NO_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_WAS_SLOW in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_ON in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_OFF in mysql.h... yes
checking for my_bool in mysql.h... no
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/opt/mysql/lib
-----
creating Makefile

current directory: /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR=" clean

current directory: /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/mysql2-0.5.3 for inspection.
Results logged to /Users/kawasetakuya/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/extensions/x86_64-darwin-19/2.6.0/mysql2-0.5.3/gem_make.out
```

gem_make.outのログを確認したところ

上記のエラー文と同じ内容でした。

なにかヒントでもいただけると幸いです。