Difficulties installing mysql gem on Ubuntu

Question

I am trying to install the mysql 2.8.1 gem. I would be using it to build a Rails 2.0.2 application on Ubuntu 10.04. I would be using Ruby 1.8.7. I have installed the develop

Answer 1

Try this and then install the mysql gem:

sudo apt-get install libmysqlclient-dev libmysqlclient16

This worked after then running sudo gem install mysql.

The documentation still doesn't install correctly (heaps of "No definition" errors, although thats not really a biggie.

Answer 2

You should do what the error message tells you: check the mkmf.log! Search for this file using find /usr/lib/ruby/gems/1.8/gems/ -name mkmf.log. Usually, this error message appears because you forgot to install the -dev package for the extension you were trying to install. So if you wanted to install the mysql gem, you probably forgot to install the libmysqlclient14-dev first. Do an apt-cache search | grep dev to find the appropriate packages.

plz check this for more information

Answer 3

Try this and then install the mysql gem:

sudo apt-get install libmysqlclient-dev 

If that's not sufficient try it like this

 sudo apt-get install libmysqlclient-dev libmysqlclient16 ruby-dev

Answer 4

In my case, I had the following error message:

An error occurred while installing mysql (2.8.1), and Bundler cannot continue. Make sure that gem install mysql -v '2.8.1' succeeds before bundling.

I tried: gem install mysql -v '2.8.1', and I got an error message similar to what you got.

I fixed it doing the following:

• STEP (1): run this: sudo apt-get install libmysqlclient-dev

• STEP (2): install mysql: gem install mysql -v 2.8.1

You should get a success message similar to this:

Successfully installed mysql-2.8.1
Installing ri documentation for mysql-2.8.1 1 gem installed

I hope my answer helps.