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Similar to this post on superuser, I used installrails.com to successfully set up my ruby on rails environment. I have been able to create a basic rails application and deploy to heroku, but every time I exit terminal and then return and try to start my local server, I get the following message: 

$ rails s
Rails is not currently installed on this system. To get the latest version, simply type:

    $ sudo gem install rails

You can then rerun your "rails" command.

So I try and reinstall rails by using the following command:

gem install rails

And get this error message:

dyld: Library not loaded: /usr/local/lib/libgmp.10.dylib
  Referenced from: /Users/bparman/.rvm/rubies/ruby-2.1.4/bin/ruby
  Reason: image not found

So I have tried reinstalling and following the directions on these articles: Ruby installation issues with RVM and Rails keeps telling me that it's not currently installed. Again, these work briefly, and I'm able to update my application, deploy it to Heroku, etc. only to come back 10 minutes later and receive this error message:

Rails is not currently installed on this system.

Here are my ruby installs:

$ rvm list

rvm rubies

=> ruby-2.1.3 [ x86_64 ]
 * ruby-2.1.4 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

Here are my gemsets: 

$ rvm gemset list_all

gemsets for ruby-2.1.3 (found in /Users/bparman/.rvm/gems/ruby-2.1.3)
=> (default)
   global


gemsets for ruby-2.1.4 (found in /Users/bparman/.rvm/gems/ruby-2.1.4)
=> (default)
   global

Again, as soon as I follow the instructions, it reinstalls, but later will say it's not installed.

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Bryan Parman
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2 Answers2

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The dyld: Library not loaded message makes me think you might have an out of date homebrew build of libgmp picked up by your rubies.

perhaps try something like 

> brew update
> brew install gmp 
> rvm reinstall 2.1.4 --disable-binary
cms
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  • I tried this, and again it worked briefly. Then about an hour later I got `Rails is not currently installed on this system.` I created a virtual machine and used the same setup as before and _not_ experiencing the issue in there. I may try getting rid of everything I installed and start fresh. – Bryan Parman Nov 08 '14 at 22:43
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I had similar issues, turns out that none of the tutorials address the bash profile settings, thats why when you moved to VM and did it afresh it worked.

I simply had to set source for RVM in bash profile took a long time to figure this out.

echo "source $HOME/.rvm/scripts/rvm" >> ~/.bash_profile

Restart terminal and the machine. Never get the error again!!!

Vignesh Ranganathan
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