Category Archives: Error

Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)

This error may occur to run older Rails application for conflicting with rubygems version. After a long googling I’ve come out in to following three solutions: Using Bundler.:Click here if you are interested to see the solution. Changing rubygems version: Downgrade the rubygems to an earlier version using gem update –system {version} Add “require ‘thread’”…

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’rails’ is not recognized as an internal or external command, operable program or batch file

You might experience the problem due to the following reasons: You haven’t installed Rails Rails path cannot be found Installed Rails using a ‘special’ installer To resolve the issue, uninstall rails installation from your PC and try a normal installation through command prompt by using following command: gem install rails –include-dependencies Note: Be sure, you…

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