For my Heroku app (Rails 3.1.4 and Ruby 1.9.2), I'm trying to change to a database that is using MySQL2, but I'm receiving an error from Heroku (which is crashing my app):
3.1.4/lib/active_record/connection_adapters/abstract/connection_specification.rb:71:in `rescue in establish_connection': Please install the mysql12 adapter: `gem install activerecord-mysql12-adapter` (no such file to load -- active_record/connection_adapters/mysql12_adapter) (RuntimeError) EXCEPT
In my gemfile, I have:
group :production do
gem "mysql2", "~> 0.3.11"
end
group :development, :test do
gem 'mysql', '2.8.1'
end
In my database.yml, I have:
development:
adapter: mysql
production:
adapter: mysql2
Here's what I've tried unsuccessfully(all attempts installed correctly locally and in Heroku):
Per this answer, I tried (in my gemfile), mysql2 version "< 0.3"
Per another answer for that question, I tried '< 0.3.7' which didn't work
I tried gem "mysql2", "~> 0.3.11" per this answer, but it didn't work
Per the gem's site, I tried (in my gemfile), mysql2 version "~> 0.2.7" and it installed mysql2 0.2.18 (successfully locally and in Heroku)
I'm sure you've figured this out or moved on long ago, but I was running into the same issue and thought I'd share what worked for me for anyone else who comes along.
In addition to what you mention above, if you're using Heroku you also have to specify mysql2:// in the DATABASE_URL instead of mysql://. See the ClearDB writeup here:
https://devcenter.heroku.com/articles/cleardb
And update their instructions to use mysql2:// instead of mysql:// like so:
heroku config:add DATABASE_URL='mysql2://adffdadf2341:adf4234#us-cdbr-east.cleardb.com/heroku_db?reconnect=true'
Hope that helps.
Try installing the ruby-mysql gem.
Related
Gem files will remain installed in
C:/RailsInstaller/Ruby2.3.3/lib/ruby/gems/2.3.0/gems/sqlite3-1.4.0 for
inspection.
Results logged to
C:/RailsInstaller/Ruby2.3.3/lib/ruby/gems/2.3.0/extensions/x86-mingw32/2.3.0/sqlite3-1.4.0/gem_make.out
An error occurred while installing sqlite3 (1.4.0), and Bundler cannot continue.
Make sure that gem install sqlite3 -v '1.4.0' succeeds before bundling.
I tried to install earlier version on sqlite, not working.
Tried one of the solutions from stackoverflow :
gem 'sqlite3', '~> 1.3.6'
getting this error
ERROR: While executing gem ... (Gem::CommandLineError)
Unknown command sqlite3,
Please help i'm new in Rails , this is my first project in rails.
Add gem 'sqlite3' to Gemfile in the root directory of your rails project. Then run bundle install and it should install sqlite and make it available to use in your rails project.
Specify git and branch for the gem sqlite3 in your Gemfile should fix the problem.
gem 'sqlite3', git: "https://github.com/larskanis/sqlite3-ruby", branch: "add-gemspec"
For more info
https://medium.com/#declancronje/installing-and-troubleshooting-ruby-on-rails-sqlite3-windows-10-fix-87c8886d03b
cannot load such file — sqlite3/sqlite3_native (LoadError) Ruby on Rails
Replace gem 'sqlite3' with gem 'sqlite3', '~> 1.3.11' which is in Gemfile in the root directory of your rails project. Then run bundle install.
When I make a new Rails project, add gem 'reactive-record', and run rails server, I get a Bundler error: There was an error while trying to load the gem 'reactive-record'. (Bundler::GemRequireError).
What gives? I have Rails 4.2.5 and Ruby 2.1.2.
Cheers!
The latest version of the generator should work very well with the help of Mitch. We collaborated together to make a generator in order to simplify greatly the installation of react.rb and reactive-record.
You should be able to get up and running by adding to your gem file :
gem 'reactive_rails_generator'
Then do a bundle install
and finally :
rails g reactrb:install --all
bundle update
Will install you reactrb, reactive-record and reactive-router.
Once installed, you can create components by doing :
rails g reactrb:component Home::Show
I worked around the problem like this:
Set rvm to use Ruby 2.2.2 and Rails 4.2.4.
Download https://codeload.github.com/catprintlabs/reactive-record/zip/master
Edited reactive-record-master/Gemfile to read:
gem 'reactive-ruby'
gem 'opal'
gem 'opal-browser'
gem 'react-rails'
cd reactive-record-master/spec/test_app
bundle install
rails server
This seemed to work.
Then, I made a new Rails 4.2.4 project. Adding only gem 'reactive-record' to the Gemfile resulted in the same error. Then I made the Gemfile read:
gem 'reactive-ruby'
gem 'opal'
gem 'opal-browser'
gem 'react-rails'
gem 'reactive-record'
And voila, rails server works!
Hope this helps someone else.
I'm starting up a new rails app with the latest version of rails (3.1.3). Rails crashes when I try to start up the server. First I fixed this bug, and now I'm getting this one
ruby-debug-base19-0.11.25/lib/ruby_debug.so: undefined symbol: ruby_threadptr_data_type
There's a discussion about this going on here, but I can't make enough sense of it to get things to work.
UPDATE
I updated the version of ruby-debug
gem 'ruby-debug-base19x', '~> 0.11.30.pre4'
and have now moved on to this error
linecache19-0.5.12/lib/trace_nums19.so: undefined symbol: ruby_current_thread
Ok, it turns out that both ruby-debug and linecache needed to be manually updated to the latest versions. These lines in my gemfile did the trick
gem 'linecache19', :git => 'git://github.com/mark-moseley/linecache'
gem 'ruby-debug-base19x', '~> 0.11.30.pre4'
gem 'ruby-debug19'
To run specs, you need to run bundle exec rspec -d spec
At last I found the problem. The debugger in RubyMine starts without bundle exec, so it doesn't use linecache19 from git. You need to install it manually.
Resolution of the problem found here: http://youtrack.jetbrains.com/issue/RUBY-9418?projectKey=RUBY
gem uninstall linecache19
gem uninstall ruby-debug-base19x
curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
gem install linecache19-0.5.13.gem
gem install ruby-debug-base19x –-pre
Make sure to uninstall all linecache19 and ruby-debug-base19x!
The following lines worked for me:
gem 'linecache19'
gem 'ruby-debug-base19x'
gem 'ruby-debug19', :require => 'ruby-debug'
(Hat tip to declan. His comment didn't work for me, but it gave me the idea to add linecache19.)
after trying all advise on stackoverflow, the following combination worked for me
gem 'linecache19', :git => 'git://github.com/mark-moseley/linecache'
gem 'ruby-debug-base19x', '~> 0.11.30.pre4'
gem 'ruby-debug19'
I'm running Rails 3.1.3 on Ruby 1.9.3-p0 with RVM
when I set :require => 'ruby-debug' the server would not start.
It's repost from this
I also ran into this, and found the solution in Ruby 1.9.3 and ruby-debug. You need to install not-yet-officially-released versions of ruby-debug-base19 and linecache19. The currently released versions indeed cause the exception you had.
Use this gist.
#To install ruby-debug on Ubuntu ruby-1.9.3 you need to download from http://rubyforge.org/frs/?group_id=8883
linecache19-0.5.13.gem
ruby_core_source-0.1.5.gem
ruby-debug19-0.11.6.gem
ruby-debug-base19-0.11.26.gem
#Then in your console
export RVM_SRC=/your/path/to/ruby-1.9.3
# Note, your source path should be something like /home/user/.rvm/src/ruby-1.9.3-p0
gem install archive-tar-minitar
gem install ruby_core_source-0.1.5.gem -- --with-ruby-include=/$RVM_SRC
gem install linecache19-0.5.13.gem -- --with-ruby-include=/$RVM_SRC
gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=/$RVM_SRC
gem install ruby-debug19-0.11.6.gem -- --with-ruby-include=/$RVM_SRC
I tried it and it's work!
This is solve of our problems.
I wonder if anybody has the following issue:
in a jruby environment, I can do:
gem install glassfish
no problem
But if I add
gem 'glassfish'
to my Gemfile and do
bundle install
it always complain glass fish gem cannot be found.
Any solution to this? Thanks
Do you have source "http://rubygems.org" in your Gemfile? I just tested
source "http://rubygems.org"
gem 'glassfish'
and it was fine:
$ cat > Gemfile
source 'http://rubygems.org'
gem "glassfish"
$ jruby -S bundle install
Fetching source index for http://rubygems.org/
Using rack (1.3.5)
Installing glassfish (1.0.3)
Using bundler (1.0.21)
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
Having said that, please keep in mind that glassfish gem is not maintained at this time. For the alternatives, please check this blog post: http://www.engineyard.com/blog/2011/taking-stock-jruby-web-servers/
It turned out to be something wrong with the Gemfile.lock. deleted the file and reinstall fixed the issue.
I am trying to deploy to heroku.
Rails 3.1.0.rc4,
I get the following error from Heroku logs:
Starting process with command: `thin -p 48902 -e production -R /home/heroku_rack/heroku.ru start`
2011-06-20T11:25:44+00:00 app[web.1]: /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.0.rc4/lib/active_record/connection_adapters/abstract/connection_specification.rb:71:in `rescue in establish_connection': Please install the postgresql adapter: `gem install activerecord-postgresql-adapter` (pg is not part of the bundle. Add it to Gemfile.) (RuntimeError)
I tried to install the activerecord-postgresql-adapter but then I get this error:
Could not find gem 'activerecord-postgresql-adapter (>= 0)' in any of the gem sources listed in your Gemfile.
So I tried to add this to my gem file
gem 'pg'
which produced this error:
Installing pg (0.11.0) with native extensions /Users/imac/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:533:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
any ideas?
You don't have to install Postgres locally. In your Gemfile, put 'pg' in group :production, as johnny-grass suggests, and then when you run bundle, just specify --without production, like this:
bundle --without production
Unfortunately, you have to remember this argument when you run bundler, but at least you don't have to install and maintain postgres locally.
Please note that Heroku "strongly recommends against" using sqlite, saying that "Your production and development environment should be as close to identical as possible" http://devcenter.heroku.com/articles/rails3
Do you have PostgreSQL installed on your computer? If you don't then install it first, then install the pg gem.
# gemfile
group :production do
gem 'therubyracer-heroku', '0.8.1.pre3' # you will need this too
gem 'pg'
end
I found a solution in this Heroku article.
As Jared said, they suggest to create a different group for postgresql.