Articles tagged 'rails'

Rails 3.1 "rails console" fails with "no such file to load -- readline"

October 12, 2011

This post was originally published in the Rambling Labs Blog on October 12, 2011.

Yesterday, I was trying to run the rails console command on Ubuntu with ruby 1.9.2 and rails 3.1, without any success. I was getting a no such file to load -- readline error. This kind of error was sort of familiar for me (I had the common no such file to load -- zlib and the not so common no such file to load -- openssl a while ago). So this was probably another package that I was missing.

Turns out that as I found in a Stack Overflow question, I needed the libreadline-dev, which I didn’t have installed. But I also needed to recompile ruby, seriously!?

This is where rvm comes to the rescue, and why I love so much to have rvm installed :D. You only need…
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Rails 3.1 smtp gmail Errno::ECONNREFUSED Connection refused

October 9, 2011

This post was originally published in the Rambling Labs Blog on October 9, 2011.

I was trying out the rails 3.1 smtp mailer on the sandbox application I use to test all the new stuff and it was throwing this error:

Errno::ECONNREFUSED in TestController#create

Connection refused - connect(2)

And I had this configuration on config/environments/development.rb:

Demo::Application.configure do
  # ...
  config.action_mailer.delivery_method :smtp
  config.action_mailer.smtp_settings = {
    enable_starttls_auto: true,
    address: 'smtp.gmail.com',
    port: 587,
    domain: 'gmail.com',
    authentication: 'plain',
    user_name: '<email@yourdomain.com>',
    password: '<password>'
  }
  # ...
end

I tried quite a number of combinations for…

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Rails 3.1 "rake db:migrate" fails with "stack level too deep" error

September 20, 2011

This post was originally published in the Rambling Labs Blog on September 20, 2011.

I was trying to run the following command on a new rails 3.1 app and it was failing… badly.

rake db:migrate

/home/edgar/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:4: warning: already initialized constant MAJOR
/home/edgar/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:5: warning: already initialized constant MINOR
/home/edgar/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:6: warning: already initialized constant BUILD
/home/edgar/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:3: warning: already initialized constant NUMBERS
/home/edgar/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version…

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Rails 3.1 "rails server" error Could not find a JavaScript runtime

September 19, 2011

This post was originally published in the Rambling Labs Blog on September 19, 2011.

I upgraded to rails 3.1.0 and created a new ‘test_app’.
```
rails new test_app
```
Got into the directory. Everything was fine, until I tried to run:
```
rails server
```
It threw a weird error:
```
Could not find a JavaScript runtime.
See https://github.com/sstephenson/execjs for a list of available runtimes.
```
That’s kinda weird. What does a rails app have to do with any JavaScript runtime? I guess it’s support for something that I still don’t know anything about.

I googled that and found a stackoverflow question. So, two solutions for the issue: either*** install nodejs*** or include “gem ‘execjs’” and “gem ‘therubyracer’” in the Gemfile and run bundle install.

Pick…
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