I'm trying to run the ruby gem "mongo3" (http://mongo3.com/)
I'm new to gem, but I would think that running "gem mongo3" should execute it, but I get this error:
chris#Zombie:~$ gem mongo3
ERROR: While executing gem ... (RuntimeError)
Unknown command mongo3
So I did "gem which mongo3" and it said it is located at "/var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb". I then ran "ruby /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb" with the following result:
chris#Zombie:~$ ruby /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb
/var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3/node.rb:1:in `require': no such file to load -- json (LoadError)
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3/node.rb:1
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb:41:in `require'
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb:41:in `require_all_libs_relative_to'
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb:41:in `each'
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb:41:in `require_all_libs_relative_to'
from /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb:53
I'm not sure what I'm doing wrong - I suspect that ruby and gems are confused about where the gems should be loaded from or something. Thanks!
You don't need to do a gem mongo3 or ruby /var/lib/gems/1.8/gems/mongo3-0.1.3/lib/mongo3.rb. Instead, just simply run mongo3.
Make sure to follow the usage instructions here to configure it or you'll get runtime errors.
Edit: If you don't install the gem using sudo, then you won't have proper write access to /usr/bin, meaning the mongo3 executable will not be in your path. You'll probably see a warning like this when installing:
WARNING: Installing to ~/.gem since /var/lib/gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /home/chris/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
You have two options: install the gem using sudo gem install mongo3 so it properly links to /usr/bin, or add /home/chris/.gem/ruby/1.8/bin to your path.
Related
I am trying to learn sass so I can develop my front end skills a little bit more because that is what I hope to be some day. The only thing is I can't get sass to work.
Whenever I run the sass --watch . command it returns this error.
>>> Sass is watching for changes. Press Ctrl-C to stop.
write ./test.css
LoadError: no such file to load -- rb-fsevent
Use --trace for backtrace.
I did a bit of research on this error and it was suggested on this site to just simply install the rb-fsevent file that is missing so I ran the gem install rb-fsevent command and then got this error.
Fetching: rb-fsevent-0.9.4.gem (100%)
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.
so I did a bit of research on THIS error and it was suggested agin on this site to just run the install with sudo. So i did just that I didn't get an error so i was quite excited because I have been fighting with this for a while so i want back to the start of this question and ran the --watch command and got the same exact error. Can anyone help me fix this?
Your first error is because Ruby can't load the rb-fsevent gem. This could be because the gem is not installed. Trying to install the gem was a good idea.
Your second error is because you are trying to install the gem to a directory that you do not have permissions for. Using sudo to do the install is an acceptable solution. You can also do gem install --user-install to install to your home directory.
You are still getting the first error because even though the gem is installed, Ruby cannot load it. This could be because sudo installed the gem with the wrong permissions, or installed it to the wrong location, or Ruby is looking for it in the wrong location.
Thus your solution would be to
Locate the gem files you installed
Check that their permissions allow you to read them
Check ruby -e 'p $LOAD_PATH' to see if Ruby is looking in the right place for the gem
Found today I couldn't get my 'jekyll server' to start, so I preceded to reinstall 'jekyll' but I get this error...
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.
Then I tried 'sudo gem install jekyll' and it worked!
Can anyone explain what's going on?
Thanks!
Use rbenv to setup a ruby binary that is in your home dir (a writable path).
You get that error because you lack write permissions to the System dir. Don't try to get write perms there - that's just asking for trouble. Instead, install a ruby version manager.
rbenv is linked above. Some like RVM. You can google for the arguments that pro/con each. rbenv is "more unix-like" and that is a good reason on its own.
It is installing system wide , you can force a single user install as follow
gem install jekyll --user-install
I'm sure this question is an easy one for Ruby users. However for me this is a issue I can't figure out by myself.
My goal is to use a script included in the Puppet archive (ext/nagios/check_puppet.rb) on a Ubuntu-10.4 system.
I try to launch the script:
$ sudo ./check_puppet.rb
./check_puppet.rb:4:in `require': no such file to load -- sys/proctable (LoadError)
from ./check_puppet.rb:4
Ok so there's something missing. I fount out I need some library called sys-proctable available at http://raa.ruby-lang.org/project/sys-proctable/
wget http://rubyforge.org/frs/download.php/65609/sys-proctable-0.9.0-x86-linux.gem
[...]
sudo apt-get install rubygems
[...]
$ sudo gem install sys-proctable-0.9.0-x86-linux.gem
Successfully installed sys-proctable-0.9.0-x86-linux
1 gem installed
Installing ri documentation for sys-proctable-0.9.0-x86-linux...
Installing RDoc documentation for sys-proctable-0.9.0-x86-linux...
Everything looks pretty good so far! Time to launch the script again
$ sudo ./check_puppet.rb
./check_puppet.rb:4:in `require': no such file to load -- sys/proctable (LoadError)
from ./check_puppet.rb:4
the gem listoutput tells me this:
$ gem list
*** LOCAL GEMS ***
sys-proctable (0.9.0)
Where has this gem been installed?
Why can't the script load the sys-proctable lib?
What the %&$# am I doing wrong?
Where's the official doc of gem?
The gem is installed - but in Ruby 1.8 you need to have the line:
require 'rubygems'
To use rubygems. This changes the 'require' function so it will pull in rubygems when you ask it to.
So in the script:
https://github.com/puppetlabs/puppet/blob/master/ext/nagios/check_puppet.rb
Just add the require near the top and try again.
For instructions on other ways to use rubygems, consult the Rubygems documentation:
http://docs.rubygems.org/read/chapter/3#page70
this is what i am getting on centos 6.4
sudo ./check_puppet.rb
./check_puppet.rb:75:in `-': no implicit conversion to float from nil (TypeError)
from ./check_puppet.rb:75:in `check_state'
from ./check_puppet.rb:122
i added require 'rubygems'
and installed sys-proctable
I've got a problem with running an additional gem under ubuntu 11.04. I installed spiceweasel via gem install - which put it in /var/lib/gems/1.8/gems/spiceweasel. When I try to run it, I get:
`require': no such file to load -- spiceweasel/version (LoadError)
The file is in /var/lib/gems/1.8/gems/spiceweasel-0.7.1/lib/spiceweasel/version.rb but cannot be loaded. This happens both with and without -rubygems.
How do I fix this?
It seems to be the same problem like here: Ruby: require 'irbtools' raises LoadError
The gem author published the gem with wrong permissions. You should contact the gem author.
I'm having trouble understanding the following error with Ruby's Rake.
C:\>gem install rake
Successfully installed rake-0.8.7
1 gem installed
Installing ri documentation for rake-0.8.7...
Installing RDoc documentation for rake-0.8.7...
C:\>rake
C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:340:in `bin_path': can't find executable r
ake for rake-0.8.7 (Gem::Exception)
from C:/Ruby192/bin/rake:19:in `<main>'
Running Ruby 1.9.2 for Windows.
Edit: Installing from source yields:
C:\Documents and Settings\XPherior\Desktop\rake-0.8.7\rake-0.8.7>ruby install.rb
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load --
ftools (LoadError)
from <internal:lib/rubygems/custom_require>:29:in `require'
from install.rb:3:in `<main>'
The second error, where you have installed into C:\Documenets And Settings\ is occurring because you cannot install ruby into a folder with a space in the path. It should be installed into c:\Ruby\ c:\Ruby#.#.#\ if you want the version # in the path, or something along those lines.
for the first error: there is a bug in the rubyinstaller.org version of ruby 1.9.2, which is causing this by running "gem install rake".
you can read about the error you're getting, here: http://redmine.ruby-lang.org/issues/show/3677
there are a couple of ways to fix this error:
re-install ruby v1.9.2 and don't run "gem install rake". rake v0.8.7 is built into the ruby v1.9.2 installation, so you don't need to re-install it.
if you do want to manually install it, you can delete the ruby.gempspec file from your ruby installation. this file is located at (rubyinstalldir)\lib\ruby\gems\1.9.1\specifications
either of these options will fix the problem for you.
i'm not sure which is "better" off-hand... it may be necessary to delete the gemspec file and reinstall rake, to support updates and new versions in the future. i'm not sure, though. we'll find out once rake is updated and we need to install a new version. or, perhaps, the issue will be fixed in the ruby installation by then, and we'll just need to update our ruby install.
I've run into your both errors.
For the first one. Try the solution post at here http://betterlogic.com/roger/2010/11/ruby-1-9-2-rake-woe/.
And for the second error, it's causes by a library update by the ruby 1.9. From the Programming Ruby 1.9, "ftools have been removed (and replaced by fileutils)." I'm not pretty sure but at least that's an explanation.