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Rake not found in any source

Could not find rake-10.1.0 in any of the sources (Bundler::GemNotFound)

 This is a very common issue sometimes and it took me time to figure it out. The passenger configuration present in /etc/apache2/apache2.conf was pointing to different ruby version. Change it accordingly depending on the specific ruby version being used.

 Steps i performed:
$ rvm use 1.9.3p327
$rvm gemset list
$rvm gemset create g1
$cd .

 Now edit the .rvmrc files present in project folder accordingly, rvm use 1.9.3-p327@g1

 From the project folder type $cd .
and the ruby version with specific gemset is loaded for the application.

 You can also do 
$ rvm use 1.9.3p327 --default 
to make it default.

 Once more way i fixed this issue is, removed the gemset which i created and used the default gemset that is
available.

 $ rvm gemset use default

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