After I updated my Ruby version with rbenv I wasn't able to use the Heroku command-line tool.
I got this error:
> heroku
rbenv: heroku: command not found
The `heroku' command exists in these Ruby versions:
2.0.0-p195
Reinstalling the tool belt from toolbelt.heroku.com didn't help.
I switched to my previous Ruby version 2.0.0p195 and uninstalled the gem 'heroku'
rbenv global 2.0.0p195
gem uninstall heroku
Then I switched to the latest Ruby version 2.0.0p353 and reinstalled Toolbelt toolbelt.heroku.com
rbenv global 2.0.0p353
If you're using rbenv, here are the steps I follow to fix this.
The error
rbenv: heroku: command not found
The `heroku' command exists in these Ruby versions:
2.2.2
What to do
rbenv local 2.2.2
gem uninstall heroku
rbenv rehash
Good to go!
Heroku does not recommend using heroku gem from the recent times. If you have already installed the gem, uninstall the gem first with:
$ gem uninstall heroku
then install the toolbelt from Heroku as specified on Heroku site:
For ubuntu/debian:
$ wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh
For other linux:
$ wget -qO- https://toolbelt.heroku.com/install.sh | sh
For Windows/MacOS see instructions on links.
I was having a similar issue. I had the heroku gem install on various ruby versions and despite the fact I had installed the heroku toolbelt from that package downloaded from their site, I was still getting:
rbenv: heroku: command not found
I found that after I had uninstalled the gem from all my ruby versions I had to run:
rbenv rehash
After that I found that everything work perfectly. I found this out from this stackoverflow answer:
ruby - heroku: command not found
I also had this problem, if you do the following command in the terminal:
which convert
And you get back this: Users/user_name/.rbenv/shims/convert, you should remove this file in your shims.
rm Users/user_name/.rbenv/shims/convert
If you do which convert again it should give back a different url: /usr/local/bin/convert
On MacOS, the thing here is that rbenv was getting confused along with brew and the heroku binary.
Heroku recommends a brew install for Macs. Now, you need to make sure that you don't have the gem installed with any other Ruby version managed with rbenv.
If you do, just reinstall them, and you'll be good to go.
Related
I am getting this error while running server, how do I fix this?
You better install Ruby 2.2.5 for compatibility. The Ruby version in your local machine is different from the one declared in Gemfile.
If you're using rvm:
rvm install 2.2.5
rvm use 2.2.5
else if you're using rbenv:
rbenv install 2.2.5
rbenv local 2.2.5
else if you can not change ruby version by rbenv,
read here
If you have already installed 2.2.5 and set as current ruby version, but still showing the same error even if the Ruby version 2.3.0 is not even installed, then just install the bundler.
gem install bundler
and then:
bundle install
If you are using rbenv then make sure that you run the "rbenv rehash" command after you set local or global ruby version. It solved the issue for me.
rbenv rehash
Your Gemfile has a line reading
ruby '2.2.5'
Change it to
ruby '2.3.0'
Then run
bundle install
Had same issue. I'm using rbenv and which ruby would show the rbenv version:
/Users/Mahmoud/.rbenv/shims/ruby
which bundle though would show:
/usr/local/bin/bundle
After looking in every possible place, turns out my problem was that I needed to update path in ~/.zshrc in addition to ~/.bash_profile (where I originally had the changes)
if you're running zsh add those two lines in ~/.zshrc (or the equivalent file) in addition to ~/.bash_profile
export PATH="$HOME/.rbenv/shims:$PATH"
eval "$(rbenv init -)"
After saving, quit terminal and relaunch before retrying. Hopefully this would help.
Two steps worked for me:
gem install bundler
bundle install --redownload # Forces a redownload of all gems on the gemfile, assigning them to the new bundler
A problem I had on my Mac using rbenv was that when I first set it up, it loaded a bunch of ruby executables in /usr/local/bin - these executables loaded the system ruby, rather than the current version.
If you run
which bundle
And it shows /usr/local/bin/bundle you may have this issue.
Search through /usr/local/bin and delete any files that start with #!/user/bin ruby
Then run
rbenv rehash
I had this problem but I solved it by installing the version of the ruby that is specified in my gem file using the RVM
rvm install (ruby version)
After the installation, I use the following command to use the the version that you installed.
rvm --default use (ruby version)
You have to install bundler by using the following command in order to use the latest version
gem install bundler
After the above steps, you can now run following command to install the gems specified on the gemfile
bundle install
it can also be in your capistrano config (Capfile):
set :rbenv_ruby, "2.7.1"
Add the following to your Gemfile
ruby '2.3.0'
I am on Mac OS Sierra. I had to update /etc/paths and add /Users/my.username/.rbenv/shims to the top of the list.
If you have some dependency on the version of the Ruby , then install the appropriate version. otherwise change the version in the gemfile in the current directory.
rbenv install <required version>
rbenv local <required version>
Even after installation it was showing the same error for me, so I just restart the mac, then do the bundle install, it works :)
it should show something like this
<user>#<repo>% rbenv versions
system
* 2.3.7 (set by <app>)
For $ Your Ruby version is 2.3.0, but your Gemfile specified 2.4.1.
Changed 2.4.1 in Gemfile to 2.3.0
Refer the below link to install the required version.
https://nrogap.medium.com/install-rvm-in-macos-step-by-step-d3b3c236953b
$ \curl -sSL https://get.rvm.io | bash
rvm install 2.7.1
run:
rbenv global
if old version
then run:
1)
brew update
brew install ruby-build
2)
brew install rbenv
3)
rbenv install 2.7.5
4)
rbenv init
5)
rbenv shell 2.7.5
6)
eval "$(rbenv init - zsh)"
list commands for rbenv - run simple:
rbenv
I install rvm and rbenv it not help me so i go the project and open Gemfile change the ruby version with recommend version and than follow the command cd ios -> bundle install
Your project is ready to Run now.
Open Gemfile and find
ruby '2.2.5'
Change it to
ruby '2.3.0'
then install bundle
Am trying to set up rails on mac using rbenv and Homebrew.
Currently getting the following message when attempting to 'gem install rails':
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.
username-mbp:projects username$ gem install rails
Any ideas??
If you are using rbenv, you should not use sudo to install gems. rbenv very helpfully installs your gems under your home directory in a way that allows you to use different gems for each installed Ruby version. When you change versions of Ruby you will really appreciate this.
To see the current version of Ruby, use rbenv local. For me this prints:
2.2.2
To see all the Ruby versions on your system of which rbenv is aware:
rbenv versions
rbenv stores the version specifier in a file called .ruby-version. This allows you to use different versions of Ruby for different projects, each version having its own set of gems.
When you try to install rails and get the Gem::FilePermissionError, it means that rbenv is not active, or you are deliberately installing into the "system" Ruby. There is nothing wrong with this per se, but you are not taking advantage of rbenv.
I recommend installing Rails again, using rbenv local to ensure that you are adding the gems to the correct path. You'll know this is working when
gem env gemdir
produces something like:
/Users/username/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0
See https://github.com/sstephenson/rbenv#installation for more info.
This probably means that you used sudoat some point, which means that you run a command that allows you (as a permitted user to execute a command as the superuser or another user) See here: http://linux.about.com/od/commands/l/blcmdl8_sudo.htm.
Can you please paste the commands you used for installing rbenv, ruby, gem, brew, etc.? Also please paste the output of brew doctorto see if environment is correctly configured for Homebrew. Also, please paste the OSX version and rbenv versionsif rbenv is installed.
The steps for installing ruby on rails on OSX are:
Install Homebrew by:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"`` (as seen here: http://brew.sh/). Run brew doctor and brew updateto see if everything is fine.
Install ruby: OS X comes with Ruby installed (Mavericks/Yosemite even gets version 2.0.0, previously it was only 1.8.7).
Install rbenv: it can be done either by GitHub Checkout or Brew. You probably should use brew. Run brew install rbenv ruby-build(this will also install ruby-build -https://github.com/sstephenson/ruby-build#readme-). You can also use this command brew install rbenv ruby-build rbenv-gem-rehash. Then echo 'eval "$(rbenv init -)"' >> ~/.bash_profile (to enable shims and autocompletion). You should problably run this too: echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile. Close terminal and open it again. Install the preferred version of ruby (if you want): rbenv install 2.0.0-p353.
Install Bundler: gem install bundler.
Install SQLite: gem install sqlite3
Install Rails: gem install rails.
So, the error you are having is due to permissions (you can understand about them here: http://www.tutorialspoint.com/unix/unix-file-permission.htm). Many people suggest fixing the issue with sudo or chown (http://www.cyberciti.biz/faq/how-to-use-chmod-and-chown-command/). I don't recommend that as it messes with system configuration. It will be better that you run:
rbenv install 2.1.2
rbenv global 2.1.2
gem update --system
When I run with this error like a year ago, what I did was uninstall everything and start again... but, probably that'll take too long.
These links might help you:
ruby for mac, ruby rbenv, rbenv githube, rubies and gems, question on stack
Use sudo:
sudo gem install rails
This guide helped me a lot: Setup Ruby On Rails on
Mac OS X 10.10 Yosemite
I have recently moved from RVM to Rbenv and when attempting to execute rails I am getting an error like the one below
Pauls-Air:~ $ rails
rbenv: rails: command not found
The `rails' command exists in these Ruby versions:
2.1.2
After installing a gem via the command line in a ruby version you have to execute rbenv rehash as described in the docs here and here
For example:
$ rbenv install 2.2.0
$ gem install bundler
$ rbenv rehash
$ gem install rails
$ rbenv rehash
You need to install Rails for each Ruby version within rbenv. Try running rbenv version, I might expect that 2.1.2 is not the ruby version in use for the current project (local version) or maybe your global version.
I ran into the same issue, but none of these other solutions (or any of the others I found elsewhere) worked. I was about to go back to RVM, so I decided to get rid of rbenv completely and it paved the way to the solution.
Try the following - it worked for me:
uninstalling rbenv, remove all references rbenv in your bash profile, and remove the remaining rbenv file folder and its contents.
Reinstall rbenv with homebrew.
Add it back to your bash profile:
export PATH="$HOME/.rbenv/bin:/usr/local/bin:$PATH"
eval "$(rbenv init -)"
Restart the shell:
exec $SHELL -l
Check the path:
echo $PATH
Install Rails:
gem install rails
rbenv rehash
Note: I consulted this for part of this answer: https://www.codementor.io/tips/3732499178/solution-for-rbenv-rails-is-not-currently-installed-on-this-system-to-get-the-latest-version-simply-type
Try to set up your environment with 2.1.2 version running this command line in your terminal:
$ rbenv shell 2.1.2
It works to me
Ensure that the .ruby-version file in your project's directory contains the same ruby version as the one you installed with rbenv.
For me, I set up my environment with the listed "The `rails' command exists in these Ruby versions".
$ rbenv shell 2.1.2
$ rails -v
It works.
Like for example if you want to install Ruby 2.5.3 with Rails 6
follow this way:-rbenv global 2.5.3
$ gem update --system
$ rbenv install 2.5.3
$ rbenv global 2.5.3
$ gem install rails -v 6.0.2.2
$ ruby -v
$ rails -v
The problem is that your global ruby version doesn't match your installed somewhere locally version which is 2.1.2. Try executing anywhere in bash shell:
rbenv global 2.1.2
That way rails will be found by rbenv in your $HOME directory and anywhere else.
rbenv global
Sets the global version of Ruby to be used in all shells by writing
the version name to the ~/.rbenv/version file. This version can be
overridden by an application-specific .ruby-version file, or by
setting the RBENV_VERSION environment variable.
I have had rails installed and almost working. Was working on a solution to another problem with I accidentally closed the bash window. So I reopened it, and now I am unable to use rails at all and it's telling me that rails isn't installed. So I ran gem install rails --no-ri --no-rdocand now I get the following:
ERROR: While executing gem ... (Errno::EEXIST)
File exists # dir_s_mkdir - /usr/local/Cellar/ruby/2.1.1_1/lib/ruby/gems`
How do I correct this error?
I just removed the broken gems, site_ruby and vendor_ruby symlinks from the /usr/local/Cellar/ruby/2.1.1_1/lib/ruby/ folder and now everything seems to work fine.
I just added a gems/ directory here /usr/local/lib/ruby/ and that solved the issue.
for a temporary solution, you can mkdir -p /usr/local/Cellar/ruby/2.1.1_1/lib/ruby/gems/2.1.0 to solve.
When you open your bash window (called the "terminal window" or "console"), what folder ("directory") are you in? Find out with:
$ pwd
Navigate to the folder where you created your Rails project using the Unix cd command, for example:
$ cd workspace/learn-rails
If you are using RVM, make sure you have selected the correct gemset:
$ rvm gemset list
gemsets for ruby-2.1.1 (found in ...)
(default)
global
=> learn-rails
Then see if Ruby and Rails are installed:
$ ruby -v
ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0]
$ rails -v
Rails 4.1.0
Refer to the article Install Ruby on Rails for help. If you haven't followed all the steps in the article, you may have problems, especially if you followed some of the inaccurate instructions found elsewhere on the web.
I was recently in this wormhole. It seems like Homebrew's ruby installation has an issue with soft links and uses version 2.1.1. I couldn't "gem install" anything without getting the annoying "File exists # dir_s_mkdir" error. Even tried MacPort and that was a nightmare.
First uninstall ruby via
brew uninstall ruby
or
port uninstall ruby
And follow the instruction on https://rvm.io/rvm/install to install ruby
\curl -sSL https://get.rvm.io | bash -s stable --ruby
It might then complain about ruby-2.0.0-p353 not installed
To install do:
rvm install ruby-2.0.0-p353
Then run the rvm install script. Your "gem install << whatever >>" should now work
This fixed the issue for me (Homebrew on a Mac, Ruby 2.1.3):
$ brew reinstall ruby
$ brew unlink ruby && brew link ruby
the same issue. I just remove dir_s_mkdir, then pod install. it works for me!
So when I run:
$ rails new mywebapp
I get the following error:
Your user account isn't allowed to install to the system Rubygems.
This is despite installing rbenv via Homebrew.
I have added the following to ~/.bash_profile
eval "$(rbenv init -)"
And installed a version of Ruby.
Running:
$ echo $PATH
Gives me:
/Users/myusername/.rbenv/shims:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
Im not sure where to go from here. Hoping someone can help.
Many thanks.
Agreeing with Dylan on the problem, I think that the best solution is to set explicitly an Rbenv global version using rbenv global 2.1.1
And then reinstalling bundler on that version.
gem uninstall bundler
gem install bundler
rbenv rehash
This worked good for me.
Hope it helps.
Based on the comments to the original question, the answer was that the system-installed rails executable was being used instead of the rbenv version. The fix was to run:
gem install rails