CODEWITHSUNDEEP
mysqlruby-on-railsrubyrubygemsgemfile
user984621
user984621

Reputation: 48503

I can't run "bundle update" because of "mysql2" gem

I have this in the Gemfile:

gem 'mysql2'

But when I run bundle update, I get this error message:

An error occurred while installing mysql2 (0.3.16), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.3.16'` succeeds before bundling.

I've tried to move this into the production section, like this:

group :production do
  gem 'mysql2'
end

But after running bundle update, the result is the same. This section is processed only in the production mode, or not?

How to get rid of this error message on localhost?

EDIT: The whole error message:

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/radek/.rvm/rubies/ruby-1.9.3-p385/bin/ruby extconf.rb
checking for ruby/thread.h... *** 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
    --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=/Users/radek/.rvm/rubies/ruby-1.9.3-p385/bin/ruby
/Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
    from /Users/radek/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'
    from extconf.rb:9:in `<main>'


Gem files will remain installed in /Users/radek/.rvm/gems/ruby-1.9.3-p385/gems/mysql2-0.3.16 for inspection.
Results logged to /Users/radek/.rvm/gems/ruby-1.9.3-p385/gems/mysql2-0.3.16/ext/mysql2/gem_make.out
An error occurred while installing mysql2 (0.3.16), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.3.16'` succeeds before bundling.

Thank you

Upvotes: 10

Views: 12701

Answers (5)

ymbirtt
ymbirtt

Reputation: 1686

I've ended up with a near-identical error message from attempting to build on a machine without gcc-c++ installed; mkmf is failing to compile a simple c program because the compiler flat out isn't there.

If you're on CentOS, you want sudo yum install gcc-c++. On Ubuntu, it's sudo apt-get install g++. It's a little disappointing that old versions of ruby-devel don't have a dependency on g++.

Upvotes: 0

Ri4a
Ri4a

Reputation: 640

On Ubuntu, run

sudo apt-get install libmysqlclient-dev

Or, if you use MariaDB, run

sudo apt-get install libmariadbclient-dev

Upvotes: 26

Catfish
Catfish

Reputation: 19312

I just installed mysql via $ brew install mysql and it fixed the problem.

Upvotes: 1

Pavan
Pavan

Reputation: 33542

Looks like there is no mysql2 gem installed in your machine.As you are using Mac OSX,you should be installing mysql2 gem like this

gem install mysql2 -- --with-mysql-dir=/usr/local/opt/mysql/

If the above command did't work,try like this

sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

And after try 

bundle install

This should fix the error.

Source

Upvotes: 3

Shamsul Haque
Shamsul Haque

Reputation: 2451

Add this in Gemfile:-

gem 'mysql2', '0.3.16'

Then:-

bundle install

After that try:-

bundle update

Upvotes: 1

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