no such file to load -- rubygems LoadError

Question

I recently installed rails in fedora 12  I m new to linux as well  Everything works fine on Windows 7  But I m facing lot of problems in linux  Help please   I ve installed all the essentials to my knowledge to get the basic script server up and running  I have this error from boot rb popping up when I try script server  Some of the details I d like to give here   The directories where rails  ruby and gem are installed    vineeth localhost my app   which ruby  usr local bin ruby   vineeth localhost my app   which rails  usr bin rails   vineeth localhost my app   which gem  usr bin gem   And when I run the script server  this is the error    vineeth localhost my app   script server   script    config boot rb 9 in  require   no such file to load -- rubygems  LoadError   from   script    config boot rb 9  from script server 2 in  require   from script server 2   And the PATH file looks like this   vineeth localhost my app   cat    bash profile    bash profile    Get the aliases and functions if   -f    bashrc    then       bashrc fi    User specific environment and startup programs  PATH  PATH  HOME bin  export PATH   usr local bin  usr local sbin  usr bin ruby  PATH    I suppose it is something to do with the PATH file  Let me know what I need to change here  If there are other changes I should make  please let me know

User · Answer

OK  I am a Ruby noob  but I did get this fixed slightly differently than the answers here  so hopefully this helps someone else  tl dr  I used RVM to switch the system Ruby version to the same one expected by rubygems      First off  listing all Rubies as mentioned by Eimantas was a great starting point    gt  which -a ruby  opt local bin ruby  Users Brian  rvm rubies ruby-1 9 2-p290 bin ruby  Users Brian  rvm bin ruby  usr bin ruby  opt local bin ruby   The default Ruby instance in use by the system appeared to be 1 8 7    gt  ruby -v ruby 1 8 7  2010-06-23 patchlevel 299   i686-darwin10    while the version in use by Rubygems was the 1 9 2 version managed by RVM    gt  gem env   grep  RUBY EXECUTABLE    - RUBY EXECUTABLE   Users Brian  rvm rubies ruby-1 9 2-p290 bin ruby   So that was definitely the issue  I don t actively use Ruby myself  this is simply a dependency of a build system script I m trying to run  so I didn t care which version was active for other purposes   Since rubygems expected the 1 9 2 that was already managed by RVM  I simply used RVM to switch the system to use the 1 9 2 version as the default    gt  rvm use 1 9 2 Using  Users Brian  rvm gems ruby-1 9 2-p290   gt  ruby -v ruby 1 9 2p290  2011-07-09 revision 32553   x86 64-darwin11 3 0    After doing that my  no such file  issue went away and my script started working

User · Answer

I would just like to add that in my case rubygems wasn t installed   Running sudo apt-get install rubygems solved the issue

User · Answer

In case anyone else is googling this problem  I was able to fix mine by finding the elusive  rubygems  folder that I wanted to use and adding it to my  RUBYLIB environment variable   find   -name  rubygems  -print   Once you find it  add the parent directory to your environment  In bash  like so   export RUBYLIB  path to parent   Now if you run gem  it should pick up the right library directory  and you re off and running

User · Answer

This is the first answer when Googling  require   cannot load such file -- ubygems  LoadError  after Google autocorrected  ubygems  to  rubygems   Turns out this was an intentional change between Ruby 2 4 and 2 5  Bug  14322   Scripts that detect the user gems directory without taking into account the ruby version will most likely fail   Ruby 2 4  ruby -rubygems -e  puts Gem user dir    Ruby 2 5  ruby -rrubygems -e  puts Gem user dir

User · Answer

I had a similar problem and solved that by setting up RUBYLIB env   In my environment I used this   export RUBYLIB  ruby dir lib ruby 1 9 1   ruby dir lib ruby 1 9 1 i686-linux   RUBYLIB

User · Answer

gem install bundler   fixed the issue for me

User · Answer

Try starting the project with     script server   instead of script server if you are using ruby 1 9 2  from strange inability to require config boot after upgrading to ruby 1 9 2

User · Answer

I had a similar problem on Ubuntu due to having multiple copies of ruby installed   1 8 and 1 9 1  Unfortunately I need both of them  The solution is to use     sudo update-alternatives --config ruby There are 2 choices for the alternative ruby  providing  usr bin ruby      Selection    Path                Priority   Status ------------------------------------------------------------   0             usr bin ruby1 8     50        auto mode   1             usr bin ruby1 8     50        manual mode   2             usr bin ruby1 9 1   10        manual mode  Press enter to keep the current choice     or type selection number  2 update-alternatives  using  usr bin ruby1 9 1 to provide  usr bin ruby  ruby  in manual mode    After doing that bundle install succeeded

User · Answer

If you have several ruby installed  it might be sufficient just to remove one of them  on MacosX with extra ports install  remove the ports ruby installation with   sudo port -f uninstall ruby

User · Answer

I had a similar problem  simply running a trivial ruby script that just required the gem i wanted   got that error message   When I changed the incantation from   ruby test rb   to  ruby -rubygems test rb   Seemed to work

User · Answer

Simply running  bin bash --login did the trick for me  weirdly  Can t explain it

User · Answer

I have also met the same problem using rbenv   passenger   nginx  my solution is simply adding these 2 line of code to your nginx config    passenger default user root  passenger default group root    the detailed answer is here  https   stackoverflow com a 15777738 445908

User · Answer

I have a hunch that you have two ruby versions  Please paste the output of following command     which -a ruby   updated regarding to the comment   Nuke one version and leave only one  I had same problem with two versions looking at different locations for gems  Had me going crazy for few weeks  Put up a bounty here at SO got me same answer I m giving to you    All I did was nuke one installation of ruby and left the one managable via ports  I d suggest doing this     Remove ruby version installed via ports  yum or whatever package manager   Remove ruby version that came with OS  hardcore rm by hand   Install ruby version from ports with different prefix   usr instead of  usr local   Reinstall rubygems

User · Answer

I also had this issue  My solution is remove file Gemfile lock  and install gems again  bundle install

[ruby-on-rails] no such file to load -- rubygems (LoadError)

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