How to completely remove rails 4.0.0.rc1 from Linux Mint v14 Nadia

Question

I decided to completely remove the rails 4.0.0.rc1 and install the rails 3.2.13.

I need instructions for removing rails 4.0.0.rc1.

Answer 1

You can try the following:

gem uninstall rails -v 4.0.0.rc1

Update:

gem uninstall railties

or if you already have a large version installed:

gem uninstall railties -v 4.0.0.rc1

You can check which embossed pearls are set with gem list rails

Of course, you can install after the gem you need:

gem install rails -v 3.2.13

Answer 2

If you get the following error:

ERROR: While executing gem ... (Gem::InstallError) gem "rails" is not installed

Enter:
sudo gem uninstall rails -v 4.0.0
Then enter:
sudo gem uninstall railties

The command line will tell you something similar to this:
Select gem to uninstall:
1. railties-3.2.13
2. railties-4.0.0
3. All versions
select the version you want to remove by dialing the corresponding number. In this case 2.

Answer 3

I tried all of the above, and what worked for me is a little different. Here is what I did -

 tej@ubuntu :~/Rails$ gem list *** LOCAL GEMS *** actionmailer (3.2.6) actionpack (3.2.6) activemodel (3.2.6) activerecord (3.2.6) activeresource (3.2.6) activesupport (3.2.6) arel (3.0.2) blankslate (2.1.2.4) builder (3.0.0) bundler (1.3.5, 1.1.4) coffee-rails (3.2.2) coffee-script (2.2.0) coffee-script-source (1.3.3) erubis (2.7.0) execjs (1.4.0) hike (1.2.1) hoe (3.0.3) i18n (0.6.0) journey (1.0.3) jquery-rails (2.0.2) mail (2.4.4) mime-types (1.19) minitest (3.2.0) multi_json (1.3.6) polyglot (0.3.3) rack (1.4.1) rack-cache (1.2) rack-ssl (1.3.2) rack-test (0.6.1) rails (3.2.6) railties (3.2.6) rake (0.9.2.2) rchardet (1.3) rdoc (3.9.4) sass (3.1.19) sass-rails (3.2.5) sprockets (2.4.3, 2.1.3) sqlite3 (1.3.6) thor (0.15.3) tilt (1.3.3) treetop (1.4.10) tzinfo (0.3.33) uglifier (1.2.5) yajl-ruby (1.1.0) ** tej@ubuntu :~/Rails$ which rails** /usr/bin/rails tej@ubuntu :~/Rails$ ls -l /usr/bin/rails -rwxr-xr-x 1 root root 206 Jun 30 2012 /usr/bin/rails tej@ubuntu :~/Rails$ ls -l /usr/bin/rails -rwxr-xr-x 1 root root 206 Jun 30 2012 /usr/bin/rails tej@ubuntu :~/Rails$ dpkg -S /usr/bin/rails ruby-railties-3.2: /usr/bin/rails ** tej@ubuntu :~/Rails$ sudo apt-get remove ruby-railities-3.2** Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package ruby-railities-3.2 E: Couldn't find any package by regex 'ruby-railities-3.2' tej@ubuntu :~/Rails$ sudo apt-get remove ruby-railties-3.2 Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: bundler libc-ares2 libev4 libjs-coffeescript libjs-jquery-ui libjs-prototype libjs-scriptaculous libv8-3.8.9.20 nodejs rake ruby-actionmailer-3.2 ruby-actionpack-3.2 ruby-activemodel-3.2 ruby-activerecord-3.2 ruby-activeresource-3.2 ruby-activesupport-3.2 ruby-arel ruby-blankslate ruby-builder ruby-coffee-script ruby-coffee-script-source ruby-dev ruby-erubis ruby-execjs ruby-hike ruby-hoe ruby-i18n ruby-journey ruby-mail ruby-mime-types ruby-minitest ruby-multi-json ruby-polyglot ruby-rack ruby-rack-cache ruby-rack-ssl ruby-rack-test ruby-rchardet ruby-sass ruby-sprockets ruby-sqlite3 ruby-text-format ruby-thor ruby-tilt ruby-tmail ruby-treetop ruby-tzinfo ruby-uglifier ruby-yajl rubygems-integration Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: ruby-coffee-rails ruby-jquery-rails ruby-rails-3.2 ruby-railties-3.2 ruby-sass-rails 0 upgraded, 0 newly installed, 5 to remove and 223 not upgraded. After this operation, 1,392 kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 173785 files and directories currently installed.) Removing ruby-coffee-rails ... Removing ruby-jquery-rails ... Removing ruby-rails-3.2 ... Removing ruby-sass-rails ... Removing ruby-railties-3.2 ... ** tej@ubuntu :~/Rails$ gem list** *** LOCAL GEMS *** actionmailer (3.2.6) actionpack (3.2.6) activemodel (3.2.6) activerecord (3.2.6) activeresource (3.2.6) activesupport (3.2.6) arel (3.0.2) blankslate (2.1.2.4) builder (3.0.0) bundler (1.3.5, 1.1.4) coffee-script (2.2.0) coffee-script-source (1.3.3) erubis (2.7.0) execjs (1.4.0) hike (1.2.1) hoe (3.0.3) i18n (0.6.0) journey (1.0.3) mail (2.4.4) mime-types (1.19) minitest (3.2.0) multi_json (1.3.6) polyglot (0.3.3) rack (1.4.1) rack-cache (1.2) rack-ssl (1.3.2) rack-test (0.6.1) rake (0.9.2.2) rchardet (1.3) rdoc (3.9.4) sass (3.1.19) sprockets (2.4.3, 2.1.3) sqlite3 (1.3.6) thor (0.15.3) tilt (1.3.3) treetop (1.4.10) tzinfo (0.3.33) uglifier (1.2.5) yajl-ruby (1.1.0) tej@ubuntu :~/Rails$ 

Answer 4

You can try the following:

 sudo apt purge rails