Cannot install Rails

Ruby on Rails
1

Hi

I just ran the Thoughtbot Laptop script on my new iMac (Yosemeti)

However, when I tried to install Rails, I got the suggestion to use the command

sudo gem install rails

so I did that.

however, when I try to create a new rails project, I get this error message:

Errno::EACCES: Permission denied @ dir_s_mkdir -     /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/extensions/x86_64-darwin-14/2.2.0-static/json-1.8.2
An error occurred while installing debug_inspector (0.0.2), and Bundler cannot
continue.
Make sure that `gem install debug_inspector -v '0.0.2'` succeeds before
bundling.
     run  bundle exec spring binstub --all
/Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/resolver.rb:369:in    `resolve': Could not find gem 'rails (= 4.2.0) ruby' in the gems available on this machine. (Bundler::GemNotFound)
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/resolver.rb:167:in    `start'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/resolver.rb:129:in `resolve'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/definition.rb:193:in `resolve'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/definition.rb:132:in `specs'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/definition.rb:177:in `specs_for'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/definition.rb:166:in `requested_specs'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/environment.rb:18:in `requested_specs'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/runtime.rb:13:in `setup'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler.rb:122:in `setup'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/bundler-1.8.3/lib/bundler/setup.rb:18:in `<top (required)>'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'

does anyone encountered the same issue? How can I solve this?

thanks,

Anthony

2

The Laptop script includes rbenv so you shouldn’t need the sudo prefix. Can you show what the output of gem install rails is?

3

You did? I’m afraid that was not great advice. Was that from us?

4

no Ben, the suggestion was in the error message when I tried to generate a new Rails project

greetings,

Anthony

5

Hi Andy,

I can’t show the output right now, it’s the new iMac at my office. I’ll post the output on Monday.

greetings,

Anthony

6

Did you try this? It’s happened to me sometimes that I get an error because some gem fails to build, run the individual gem installation, and then things work as expected.

7

Hi Carles,

I ran the command

gem install debug_inspector -v '0.0.2'

but that gives the error:

Anthonys-iMac% gem install debug_inspector -v '0.0.2'
Building native extensions.  This could take a while...
ERROR:  While executing gem ... (Errno::EACCES)
Permission denied @ dir_s_mkdir - /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/extensions/x86_64-   darwin-14/2.2.0-static/debug_inspector-0.0.2
8

Hi Andy,

The output of

gem install rails

is

Anthonys-iMac% gem install rails
ERROR:  While executing gem ... (Errno::EACCES)
Permission denied @ rb_sysopen - /Users/acandael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rails-4.2.0/README.md
9

Yes, this is a permissions error, and hence probably why you were suggested to use sudo. I can recall this happened to me the very first time I tried to setup a Ruby environment.

I’d wait for othere people’s suggestions, but if this is your very first time setting up a Ruby env, or unless you can tell exactly what the Laptop Script is doing, I’d clean up everything and start from scratch, but doing everything yourself and one step at a time. It’ll might take a little bit longer than just run a script, but it’ll also help you have a clear knowdlege of everything that had to be done to get it running.

10

I found a solution on Stack Overflow: ruby - Permission Error When Trying To Install Rails (OSX) - Stack Overflow

sudo chown -R acandael ~/.rbenv

fixed the issue.

greetings,

Anthony