Question

I was having issues with RVM so I tried to uninstall everything (Ruby, RVM and Rails) and start fresh.

I installed Ruby 1.9.2 and Rails 3.1.2 rc2 and I am working on Ubuntu 10.0.4. If I do ruby -v from the command prompt I am able to see the ruby version installed and same is true for rails -v.

However once I get into the application directory which and try to check rails -v I get this error

“Could not find rake-0.9.2 in any of the sources
Run bundle install to install missing gems.”

If I do bundle install I am getting this error

“bash: /usr/bin/bundle: /usr/bin/ruby1.8: bad interpreter: No such file or directory”

Nothing seems to work and I am stuck in this recursive loop of uninstalling and installing.

Everything was working fine till I got an error linecache19 which requires Ruby >=1.9.2 (I was using 1.8.7 earlier). I installed RVM and Ruby 1.9.2, I had to uninstall RVM and 1.8.7 and I tried to install to install Ruby 1.9.2 as a standalone package. This obviously didn’t work.

Please HELP!!

Answer 1

If you have uninstalled a previously installed Ruby version (in my case it was Ruby 1.8.7) and try to install latest Ruby version (I was trying to install 1.9.2) without using RVM. I manually deleted all the version of Ruby present by searching $whereis ruby from my command prompt.

After that I installed a ruby1.9.2. In my existing rails application I was getting lot of errors because the application creates a reference to the earlier installed ruby version (1.8.7) and try to find gems in the earlier installed location.

SO once you have installed a new version and want to run the earlier developed application search where your application is referencing the older version of ruby.

In my case I had to change the path in script/rails from #!/usr/bin/env to #!/usr/local/bin/ruby .

You might also have to add the path of the latest Ruby which you have installed in path variables.