Don't install sqlite3 but sqlite3-ruby gem.
Added by Waterloo Takemura over 14 years ago
Hi. This is not help requesting message, but I just want to share my situation and how I soloved it.
I tried to setup redmine 0.9 using sqlite3 as db along with the instruction here: http://www.redmine.org/wiki/redmine/RedmineInstall
When I do
$ RAILS_ENV=production rake db:migrate
(You can add '--trace' to see the full stacktrace.)
I get
rake aborted! Object is not missing constant Project!
And I'm stacked here for a day trying uninstalling/installing all gems and ruby. After repeating a couple of times, I figured sqlite3 gem is causing this problem.
$ gem list *** LOCAL GEMS *** actionmailer (2.3.5, 2.1.2) actionpack (2.3.5, 2.1.2) activerecord (2.3.5, 2.1.2) activeresource (2.3.5, 2.1.2) activesupport (2.3.5, 2.1.2) echoe (3.0.2) ffi (0.6.2) gem_plugin (0.2.3) highline (1.5.0) rack (1.0.1) rails (2.3.5, 2.1.2) rake (0.8.7, 0.8.3) rubyforge (1.0.0) rubygems-update (1.3.6) sqlite3 (0.0.8) sqlite3-ruby (1.2.5)
You can see 'sqlite3' and 'sqlite3-ruby' gem at the bottom. What you want is 'sqlite3-ruby', not 'sqlite3'.
I don't know why sqlite3 is installed, but guess I just installed it unconsciously. If I care the gem install log of sqlite3, I might have noticed easily. (I usually don't care these logs.) It says
==== WARNING =================================================================== This is an early alpha version of SQLite3/Ruby FFI bindings! Currently we support Ruby 1.9 ONLY. If you need native bindings for Ruby 1.8 - install sqlite3-ruby instead. You may need to uninstall this sqlite3 gem as well. Thank you for installing sqlite3 gem! Suggestions: qoobaa@gmail.com ================================================================================
But, it is hard to figure out the cause once it is installed because rake's error log doesn't say anything about sqlite.
After uninstalling 'sqlite3', rake db:migrate works fine.