Arel Deprecation Warning when running rake db:create

Question

I'm trying to create an app in Rails 3.1 with mysql2 v 0.2.6. When running rake db:create, I get the following error:

DEPRECATION WARNING: Arel::Visitors::VISITORS is deprecated and will be removed. 
Database adatpers should define a visitor_for method which returns the appropriate 
visitor for the database. For example, MysqlAdapter.visitor_for(pool) returns 
Arel::Visitors::MySQL.new(pool). (called from mon_synchronize at 
c:/Ruby192/lib/ruby/1.9.1/monitor.rb:201)

I can access the MySQL monitor, so the gem appears to be installed correctly. What else could be going on here?

Thanks!

score 1 · Answer 1 · answered Sep 29 '11 at 16:00

1

Try updating your msql gem.

In ./Gemfile

gem require 'mysql2', '~> 0.3.6'

bundle update mysql2

answered Sep 29 '11 at 16:00

raavd

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1

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So this version of mysql2 does not want to install correctly...'failed to build native extension' and all that jazz. But 0.2.6 installed fine? – Beth Sep 30 '11 at 10:19

score 0 · Answer 2 · answered Jan 10 '12 at 19:16

0

use the below specified version in gemfile.

gem 'mysql2', '~>0.3.10'

then run

bundle install

answered Jan 10 '12 at 19:16

Amal Kumar S

15,555
19
56
88

Arel Deprecation Warning when running rake db:create

2 Answers2