Search code examples
ruby-on-railsrake

Rails: NameError: uninitialized constant Rack::LiveReload

I'm working on a Rails 4.2 application on Ubuntu 20.04.

I'm trying to run a rake task using the command below:

rake my-task

But when I run it I get the following error:

NameError: uninitialized constant Rack::LiveReload

Trying to figure out how to resolve it

Solution

  • Here's how I solved it:

    The issue had to do with me not specifying the rails environment within which I wanted to run the rake command.

    To specify the rails environment, I could use the RAILS_ENV variable this way:

    rake my-task RAILS_ENV=production

    OR if my environment is a staging environment:

    rake my-task RAILS_ENV=staging

    OR you could use the export command to pass the rails environment:

    export RAILS_ENV=production
rake my-task

    OR if my environment is a staging environment:

    export RAILS_ENV=staging
rake my-task

    Reference: websocket-server.rb and scheduler.rb Rack::LiveReload problem

    That's all.