I'm in the root of my Rails app and have attempted to start the rails console a various number of ways, including rails c, bundle exec rails c, spring rails c, and bin/rails c to no avail. It simply returns the a message as if I had just typed in rails without any arguments.
Here's the message I get:
> rails c
Usage:
rails new APP_PATH [options]
I've used RVM to uninstall and reinstall my ruby version and have uninstalled and reinstalled my gemset.
I suspect it has something to do with spring but can't quite put my finger on it.
So after stumbling across these two stack overflow posts, #1, #2, which directed me to this Github issue in the rails repo.
Basically, running rake rails:update:bin generated new bins that ended up solving my problem.
Related
So I'm a newb (hey at least i found stack overflow right?) and I'm using Michael Hartl's Ruby on Rails Tut. Chapter three has me input:
sudo rails generate controller StaticPages home help
and I get back:
Could not find nokogiri-1.6.7.1 in any of the sources
Run `bundle install` to install missing gems.
When I look at the bundle installer it definitely lists nokogiri 1.6.7.1
AND when I input:
bundle show nokogiri
I get:
/Users/user/.rvm/gems/ruby-2.2.3#rails3tutorial2ndEd/gems/nokogiri-1.6.7.1
I'm using rails v 4.2.5 on my macbook pro os x el capitan v 10.11.1
ANY HELP is supremely appreciated. Maybe I can pay it forward a year or two from now!
Bundler is a tool that makes sure the runtime environment uses the right library and versions. Usually, we prepend commands to do Ruby developments, including Rails:
bundle exec rails generate controller StaticPages home help
bundle exec takes a command and its parameters, and run it into the environment defined in the Gemfile, found in the same folder.
And as #David Grayson mentioned, sudo changes the environment. For security and packaging of your code, it is better to run as your current user (and to avoid the wrath of the deployment team).
Try running that command without sudo. Since sudo runs the command as the root user, it changes your environment and probably makes it so that you are using the wrong version of Ruby, or the version of Ruby you are using cannot see the gems you have installed.
Edit: As Eric Platon points out, try adding bundle exec at the beginning of that command to make sure bundler is loaded and that the right version of Rails will be used.
I've been following Mike Hartl's excellent Ruby on Rails Tutorial`.
I had to make some decisions earlier about versions for gem files and ruby. I decided (after some problems getting Heroku to work that I'd directly mimic the tutorial and versions of ruby described - leading me to go with rvm use 2.0.0 to set my version of ruby.
All was great on chapter one but now I'm getting an error message when i try to create a new rails project:
$ rails new demo_app
/home/huw/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in require': cannot load such file -- rails/cli (LoadError)
from /home/huw/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:inrequire'
from /usr/bin/rails:9:in `'
I have no idea what that means... but as its referencing my ruby version I'm guessing that my rails and ruby versions are out of sync...
Could someone advise on possible courses of action?
I imagine possible options would be:
Reset my ruby version to the latest (but I don't know what clashes
that would create with gems!)
Downgrade from rails 4.1 to rails 4 (I believe that's Mike Hardl's version)
Force things through somehow
I'm a complete rails Noob however, and have no idea where to begin on any of those options - or if that error code even backs up my assumptions!
Forgive the "answer" but I don't have the rep to post a mere comment :-(
Have you tried looking at the RVM site? It has a troubleshooting page that may help you.
If not, have you tried get rvm stable and then typing in the rails new app_name command?
Other useful RVM commands are rvm list rubies and rvm gemset list. It may be the case that the ruby version you're using doesn't have rails for some reason.
As per zwippie's answer in the comment section, the solution was achieved as follows.
rails -v produced a very similar looking output to the error message above.
gem install rails after hanging for a second installed rails successfully. I am now able to add a new project.
I'm unsure why this has happened as I've been successfully making new rails projects both on this laptop and in this directory for the last two weeks, even up until this morning. However as zwippie notes perhaps this is an RVM setup issue. I'll go away and read up but if anyone had any additional pointers from documentation that might shed light on the issue I'm appreciate any links in the comment.
Many thanks all.
check for the rails is installed on your machine by the command bundle show rails.
If you get the version of rails and are still getting the above error, to resolve it you may have to use the command bundle exec before every rails command as in bundle exec rails s.
I have just started to learn Ruby on Rails and in going through a tutorial I am not able to launch the rails project because of the following error.
-e:4:in `load': no such file to load -- script/server (LoadError)
from -e:4:in `<main>'
I have installed Ruby 1.9.2 and using RadRails as the IDE for creating and executing the Rails project. Any suggestions?
Most likely your tutorial refers to Rails 2 (for which given command works), while you're using Rails 3.
I'm not sure how exactly you start server in Rails 3 (edit see answer by jdl), but take my adice: find another tutorial. Otherwise, you'll have to create such questions here several times a day :)
If you just installed the latest Rails the the command has changed (as of Rails 3) to:
$ ./script/rails server
I think the best way to start a server in Rails 3 is to run this command from the root of the project:
rails server
You should have the rails executable in your path if you've installed the Rails 3 gem.
I am new to Ruby on Rails and am following a tutorial to create a class project.
I can generate a new rails project with
$ rails project
The problem Im having is when I try to start my server, It will generate a project called server:
$ rails server
or
$ rails s
I figured out that I need to install/update rails to 3.0.3 to use this command every time I open terminal. I find myself having to install gems(bundle, etc) every time I need to work on my project.
Is there anyway to save this terminal session or profile for later use?
Is it user error?
Im new to Rails and about the same with terminal.
Any help would be greatly appreciated. I have resorted to leaving my computer and terminal open for about a week...
Welcome on board! - You'll have fun, I found setting up the environment the most difficult thing.
in rails 2 you start the server with ruby script/server.
to upgrade to rails 3 try gem install rails -v=3.0.4
I put the version but it's not a mandatory option.
To uninstall a gem (as rails is) is gem uninstall gemname -v=x.x.x. -
gem list will tell you the version of each gem.
I hope you've got rvm, if not I strongly sugget you to install it, this will allow you not only to use different versions of ruby but also to set different gemsets, therefor one each project, you'll find it useful.
Once in rails 3 you can use bundler, have a look at this episode of railscasts, by the way this is a very good site, but you may know it already.
another edit...
I don't know the behavior you're describing, looks like something is wrong with your environment, but I need to know if you have rvm to solve this, if so try rvm list and rvm gemset, With the first you get the list of installed ruby, you can switch between them with rvm 1.9.2 i.e. and rvm 1.9.2#gemdirname with the gemdir coming from the second list. You should find your configuration in one of those list.
Hi if you are using rails 2.8 or lesser use this to start the server
ruby script/server
rails new project is for new rails project n rails s is for starting server
I am having trouble using script/generate. I am following the tree based navigation tutorial, which says to use script/plugin install git://github.com/rails/acts_as_tree.git or script/generate nifty_layout.
I keep getting:
No such file or directory -- script/plugin
I've tried these variations:
script/generate nifty_layout
rails generate nifty_layout
ruby script/generate nifty_layout
ruby generate nifty_layout
and they all tell me:
-bash: script/generate: No such file or directory
Am I missing something? Total ruby nuby here and I just can't seem to find an answer.
edit: rails 3 on Mac OS X 10.6
Rails 3 is your problem (or rather the cause of). Since rails 3 all of the "script/whatever" commands have been replaced with "rails whatever".
So now you want "rails generate ..." or "rails server" instead.
Be sure to watch version numbers or post dates when looking at tutorials :)
linkage:
Missing script/generate in Rails 3
There is a LOT of out-of-date information on the interwebs for Rails now as a result of it evolving quickly and being so popular. I use the Ruby on Rails Guides as my first stop for information as those pages seem to be the most current.
The rails generate info seems current.
you may try a couple things, first, make sure since you are using rails 3 that you have run 'bundle install'. depending on how you installed rails and which version of bundler you are using, it may not be finding your rails binary to execute the rails generate .. so you may try prefixing it with bundle exec rails g but that is deprecated and you should get a warning if you call it. Also, make sure you are following ryan's instructions for rails 3 (and run bundle install once you add to the gemfile) on his library: https://github.com/ryanb/nifty-generators
As a shortcut to rails server, you can use 'rails s'. Similarly for the console, 'rails c'.