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hamlインストール mysqlエラー

Last updated at Posted at 2019-12-22

実行したい内容

bundleしてhtmlをhamlにしたい。

起こっている現象

Gemfile最下部にgem "haml-rails", "~> 2.0"と記述しbundleを行うがエラーとなる

エラー内容

ターミナル
MacBook-Air:a PC$ bundle
The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for
--中省略--

Fetching mysql2 0.5.3
Installing mysql2 0.5.3 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

--中省略--
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for SSL_MODE_DISABLED in mysql.h... no
checking for MYSQL_OPT_SSL_ENFORCE in mysql.h... no
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... yes
-----
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@5.6/lib
-----
creating Makefile

current directory: /Users/itsumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR=" clean

current directory: /Users/itsumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/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/itsumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/mysql2-0.5.3 for inspection.
Results logged to /Users/itsumi/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-darwin-18/2.5.0-static/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

この部分がエラー内容で重要そう

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

色々サイト検索を行い、下記にたどり着く

打ち込む

ターミナル
$ brew info openssl

出てきた内容

ターミナル
export LDFLAGS="-L/usr/local/opt/openssl@1.1/lib"
export CPPFLAGS="-I/usr/local/opt/openssl@1.1/include"

再び打ち込む

ターミナル
$gem install mysql2 -v '0.5.3' --source 'https://rubygems.org/' -- --with-cppflags=-I/usr/local/opt/openssl@1.1/include --with-ldflags=-L/usr/local/opt/openssl@1.1/lib

出てきた内容

ターミナル
1 gem installed

再び試す

ターミナル
$bundle

エラーなし!!

通常通りターミナルで$ rails haml:erb2haml実行
ターミナル
Would you like to delete the original .erb files? (This is not recommended unless you are under version control.) (y/n)
# yを入力してエンター

haml変換成功!

お世話になったページたち

mysql2 gemインストール時のトラブルシュート
【Rails】MySQL2がbundle installできない時の対応方法
RailsプロジェクトでMySQLがbundle installできなかった
bundle install 時、mysql2でエラー

終わりに

チーム開発スタート初っ端の出来事。
いきなりのエラーです。自分一人じゃないから適当にできない。。。
最初のうちに経験できてよかった(が、エラーはまだまだ続く予感。笑)
完璧ではなくていいから完成させるように頑張ります!
(bundle exec installも試してみればよかったと今更ながら思う←)

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