I am using windows 10. I install Rails and other supporting software via railsinstaller.org website.
Now I go on CMD and writing command rails server but Rails server not starting work. when I open link in firefox http://localhost:3000
Following is snapshot of output when I write rails s in cmd. I have Rails 4.2.5.1 in my PC and using Windows 10
The problem my be caused due to following (Unable to Install gems)
if you are using latest version of ruby installer to install ruby then there are problem for installing nokogiri and ulifier or other gem which needs to compailing in your pc. so you needs to install devkit first. For this please do following:
The download is a self-extracting archive. When you execute the file, it’ll ask you for a destination for the files. Enter a path that has no spaces in it. We recommend something simple, like C:\RubyDevKit\. Click Extract and wait until the process is finished.
Download from here
Next, you need to initialize the DevKit and bind it to your Ruby installation. Open your favorite command line tool and navigate to the folder you extracted the DevKit into.
cd C:\RubyDevKit
Auto-detect Ruby installations and add them to a configuration file for the next step.
ruby dk.rb init
Install the DevKit, binding it to your Ruby installation.
ruby dk.rb install
Now run bundle install
If still problem persist downgrade your ruby or install linux distro.
You need to change your directory to the app root folder.For Example if your app name is 'myapp', then type cd myapp and run rails server with rails s.
Check if the bin/rails file is in place. If not, generate a new sample app, then copy the bin folder to it.
simply add gem "tzinfo-data" to your Gemfile and run bundle install and you are good to goenter image description here
I get the error:
Cannot start debugger. Gem 'ruby-debug-ide' isn't installed or its executable script 'rdebug-ide' doesn't exist.
but all gems were successfuly installed:
gem 'ruby-debug-ide'
gem 'debase'
I can run 'rdebug-ide' manually:
$ rdebug-ide
Using ruby-debug-base 0.2.1
Usage: rdebug-ide is supposed to be called from RDT, NetBeans, RubyMine, or
the IntelliJ IDEA Ruby plugin. The command line interface to
ruby-debug is rdebug.
But when I start debugging, RubyMine asks to install the ruby-debug-ide gem. Why?
And, after installation I get:
Cannot start debugger. Gem 'ruby-debug-ide' isn't installed or its executable script 'rdebug-ide' doesn't exist.
I'm running Mac OS X 10.11.3.
Here's the actual command that worked for me:
gem install ruby-debug-ide --pre
Complementing Ahsan Ellahi
In your terminal you're probably not running the same ruby version as inside Ruby Mine. You can check this
In Ruby Mine
Preferences --> Laguanges and Frameworks --> Ruby SDK and Gems
In Terminal
$ ruby -v
If you're not running the same version, try to set RubyMine to use the same Ruby version that you're running in your terminal. This should solve the problem. Than, if you really want to use another RubyVersion, you will need to go to your terminal, change the Ruby version and manually install both gems
I have faced this issue when debugging in a docker-compose environment. I suspect that RubyMine does not refresh the list of available gem after the SDK is added.
So if you add the SDK then add ruby-debug-ide to Gemfile you will get the error.
Instead, (re)create the SDK after adding ruby-debug-ide.
I started getting this after upgrading from 2017.x to 2018.1. In my case, it seems that RubyMine needed a newer version but its error message implied it couldn't find any version and failed to install it. I think it was trying to install it with a different SDK.
Manually installing the latest ruby-debugger-ide (in my case the --pre flag was necessary) and then restarting RubyMine did the trick for me.
Since you're using Mac OSX, I couldn't provide the same exact answer for you, but you can find a similar way of achieving this. I'm using Ubuntu with Vagrant, so you may need to adapt it just a little bit.
Copy the following gem from RubyMine/rb/gems app folder, please copy the gem related to your ruby runtime and platform, there are different gems for different ruby runtime and platforms, in my case, its:
debase-0.3.0.beta7.gem
ruby-debug-ide-0.8.0.beta6.gem
Install them inside your app host, in my case its vagrant, in your case it could be inside your container, or in your host OS using the following command:
gem install --force --local *.gem
Set breakpoint and start debugging.
It may asks you one more time to install the gem, but then the debug will works for sure.
This worked for me
gem install debase-ruby_core_source
Source: Cannot install Rubymine Debugger
You should look into RubyMine settings, which ruby version and which gemset (global/default) it is using. Check out where these required gems are installed and make sure RubyMine is using that gemset where these are installed successfully.
I fixed this after viewing the responses here: https://intellij-support.jetbrains.com/hc/en-us/community/posts/206072049-Cannot-start-debugger
The solution at the bottom suggested 'removing all my gems. removing ruby. cleaning up directories and rvm. removing ruby mine, then reinstalling everything'
I started with the easiest of these, which was to reinstall rubymine. That solved it for me.
I had this issue on Windows 11 running Ubuntu on WSL2. To solve, I manually copied the relevant files in my %AppData% directory into the corresponding directory in Ubuntu.
I found all the data at:
C:\Users[USER]\AppData\Local\JetBrains\RubyMine[VERSION]\ruby_stubs\[NUMBER]\home\[USER]\.gem\ruby\2.7.0
These files were copied to: \\wsl.localhost\Ubuntu\home\[USER]\.gem\ruby\2.7.0
After doing this, everything worked again.
I have faced this issue too with Rubymine 8, rvm 1.29.1 and Ruby version 2.3.3 And upgrading the Rubymine version from Rubymine 8 to Rubymine 2016.3 or latest resolves the issue for me.
Check ruby SDK's version is right.You can first using rails installer to install everything .
Then using gem to install rdebug for ruby 2+.
Make sure Rubymine's Ruby version is same to which you have installed.With those all done,you will be able to debug ruby.
Please check x286 vs 64 version, both Ruby and Rmine version. I had this problem runnin x86 rubyMine on 64 ruby
A combination of matching the host ide ruby version with the remote SDK version worked for me but required a few additional steps. I too am running mac os as my host (running mohave)
the remote environment setup in preferences -> ruby sdk and gems must have the same version as the remote target, including any gems installed.
NOTE: I had to re-install the bundler gem on both host and remote host to get the gem manager to install things auto-majically.
the project environment must be changed to use the same version as the remote host as well. this is in File -> preferences for new projects -> ruby sdk and gems.
NOTE: I also had to set the default RVM on my local host and remote host and unset the previous version as default in the local host preferences.
Once I did this I was able to get gems in sync and remote debugger to connect.
My solution was to go to Rubymine settings, to the available SDKs,
remove the SDK, restart Rubymine and add the SDK again.
Running Ubuntu 18 something, RubyMine version 2020.3. Had this issue. None of these suggestions worked for me, same error no matter what did. I was using RVM, and ruby 2.6 and 2.7, switched back and forth a cleaning and reinstalling gems along thew way, both debase and ruby-debug-ide were installed according to the gem list. Settings in rubymine matched "ruby -v" from the command line. VSCode worked perfectly with this setup.
In the end i removed RVM and all the ruby versions, installed ruby via rbenv, installed ruby 2.6.5 and that worked like a charm.
I think this error is generated for multiple reasons with no real way to figure out which reason for your specific instance. I would like to encourage jetbrains to generate more debug information on errors like this, or if you are generating error information, point out where it is when this happens.
Try these steps:
1. /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
2. brew install ruby
3. echo 'export PATH="/usr/local/opt/ruby/bin:$PATH"' >> ~/.bash_profile
if you get unshallow error on any step then first try:
1. git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch --unshallow
2. git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask fetch --unshallow
3. /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
4. brew install ruby
5. echo 'export PATH="/usr/local/opt/ruby/bin:$PATH"' >> ~/.bash_profile
Lastly restart the terminal and check .bash_profile:
- nano ~/.bash_profile
If you see the path variable, just close it. Otherwise it means something went wrong :/.
The last step is to open
RubyMine -> Preferences -> Language and Frameworks -> Ruby SDK and Gems -> select the newest ruby version and apply.
You may need to update ruby version from the gemfile.
And it should be done!
I'm trying to initialize a new rails app on windows, and running rails new <appname> generates everything up to vendor/assets/stylesheets/.keep, but when bundle install is run, rails generates this error:
Checksum of /versions does not match the checksum provided by server! Something is wrong.
I'm not sure what's causing this, as I've done nothing to rails itself. Any help is appreciated.
Edit: If it's an error caused by windows being finicky, I have the option of moving to Linux, but I'd like to know what's wrong first.
I had the same issue using windows, and was able to solve it by uninstalling bundler and installing an older version.
rails new <appname>
gem uninstall bundler
gem install bundler -v 1.9
cd <appname>
bundle install
That did it for me!
In my case there was a *.pre.1 version and I chose to uninstall that particular version and then "bundle install" worked.
Try removing your ruby cache folder and then try again. So for example if you are on Linux machine and you are using rbenv and say ruby 2.1.5 folder. Your path would be similar to something like (Not sure where on windows ruby is stored):
~/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/cache/
Removing this folder and trying bundle install again should resolve the issue.
It will be great, if you move to a Linux machine.
On windows it's a hell to pay in my 5 years of experience what i have learned is not to mess with (ror) or (rs) in windows. here's a cheeky thing you can do an easy way. I believe you are using github as repo, as a editor you are using sublime if thats is a case open your gemfile you will see check the image or
try to clear cache on your server or update the gems.
I had this same exact error and solved it the following way. I think you are missing the ruby DevKit being installed.
Go here http://rubyinstaller.org/downloads/ and download/install the latest 32-bit Ruby version (as of writing this 2.2.4, you will need it for the web-console gem)
Make sure to add your ruby\bin folder to your environmental path variable
The trick is hidden near the bottom-left of the same page under the "Development Kit" section. You need to download and extract the right one into a permanent location (as of writing this for 32-bit - DevKit-mingw64-32-4.7.2-20130224-1151-sfx.exe)
After extracting the files, go into the main directory and run "ruby dk.rb init" followed by "ruby dk.rb install" (More information can be found here
That fixed it for me and i can now fully install with no checksum issues
This problem began when i tried to run my app. I wrote rails s and the console said me Could not find sdoc-0.4.1 in any of the sources Run bundle install to install missing gems. Then i wrote bundle install and the message that appeared was Checksum of /versions does not match the checksum provided by server! Something is wrong.
I solve this problem following this steps:
Wrote bundle install
The console said me Could not find sdoc-0.4.1 in any of the sources
Then i reinstalled this gem with gem install sdoc -v 0.4.1
I tried again to write rails s and it's was solved.
`
I am trying to run rails server command but it showing mysql2 Load Error. I will place my Error log here
I searched many places.
I tried to install from my bundle itself using "gem install mysql2 --ruby=platform" command using connector c "libmysql.dll" file pasted in ruby/bin but no use.
I actually have MySQL installed on my system long back when I was doing JDBC connections. Its SQL server version 5.0- Is that version causing this error? Or Do I need to uninstall the MySQL from my system and install Latest Version!
And a doubt for me is how is this MySQL Server 5.0 connected to Rails as I no I have no idea about it, because while installation I used Connector C 6.1 for mysql2 installation from the Command Promt!
I tried Ruby on Rails - cannot load such file -- mysql2/2.2/mysql2 (LoadError)
I also tried Error "...cannot load such file -- mysql2/2.0/mysql2 (LoadError)". On Windows XP with Ruby 2.0.0
But I am getting the same error.
I think I have given all the details regarding versions and what I did!
I tried doing this like 50 times but no progress! I hope I will get my problem solved !Thank You!
The following below instructions can help you.
gem uninstall mysql2
Download last MySQL connector from http://cdn.mysql.com/Downloads/Connector-C/mysql-connector-c-noinstall-6.0.2-win32.zip
Extract it to C:\connector-6.0.2
gem install mysql2 --platform=ruby -- '--with-mysql-lib="C:\connector-
6.0.2\lib" --with-mysql-include="C:\connector-6.0.2\include" --with-mysql-
dir="C:\connector-6.0.2"'
Or even shorter:
gem install mysql2 --platform=ruby -- --with-opt-dir="C:\connector-6.0.2"
im not using windows. but seems to be duplicate with posts like this (Error "...cannot load such file -- mysql2/2.0/mysql2 (LoadError)". On Windows XP with Ruby 2.0.0)
I really appreciate if one can provide some insight for installing ruby on rails 3.x framework to a computer without internet connection.
All the tutorials or explanations seem to assume that there is always an internet connection. Is there simple way to download a bundle with all the dependencies included and simply install the bundle.
Thanks in advance
Finally. The complete list of Gems that you need to download manually, in order to install Rails in Offline mode (or behind a proxy that prevents your "gem" commands from working).
This list assumes that you already have the following things (Windows 7):
Ruby 1.9.2
RubyGems 1.8.24
DevKit
THE LIST.
Go to rubygems.org and use the Search function to download each one of the following Gems. You don't need to type the complete name with version numbers and stuff. For example, just "actionmailer" will work and will find the latest version).
Each gem page shows you the command line you have to type when installing it normally in a computer that isn't behind a proxy. Ignore it and just click the download link.
actionmailer-3.2.6.gem
actionpack-3.2.6.gem
activerecord-3.2.6.gem
activeresource-3.2.6.gem
activesupport-3.2.6.gem
rake-0.9.2.2.gem
i18n-0.6.0.gem
multi_json-1.3.6.gem
activemodel-3.2.6.gem
arel-3.0.2.gem
tzinfo-0.3.33.gem
builder-3.0.0.gem
erubis-2.7.0.gem
journey-1.0.4.gem
rack-1.4.1.gem
rack-cache-1.2.gem
rack-test-0.6.1.gem
sprockets-2.1.3.gem
hike-1.2.1.gem
tilt-1.3.3.gem
mail-2.4.4.gem
mime-types-1.19.gem
treetop-1.4.10.gem
polyglot-0.3.3.gem
rails-3.2.6.gem
bundler-1.1.4.gem
railties-3.2.6.gem
rack-ssl-1.3.2.gem
rdoc-3.12.gem
thor-0.15.3.gem
JSON-1.7.3.gem
(31 files total)
Just keep in mind that the versions may change. I did this in June 2012 and those were the versions that worked for me.
Copy all those files to the Ruby installation dir.
Then, open a CMD console.
cd \
cd <RubyInstallDir>
gem install rails-3.2.6.gem
Installation should run normally.
It is possible that some dependencies need a different version.
In that case, the error message will show you the right version. So you just need to download the version from rubygems.org (there is a list of old versions in the gem's page) and run the gem install command again.
I hope this can help.
You can use bundler to achive that. Bundler accepts the path where you can specify the location for the gems to be installed. Run the following command where you have internet connection. It will download all the dependencies and pack them into the specified folder.
bundle install --path gems # 'gems' is the folder present in Rails.root
Now that all the dependencies are within the project, you can copy the project to the machine where you don't have internet connection. From now on use the commands like:
bundle exec rails server
bundle exec rails console
Note that you have to install the bundler gem manually in the target machine.
I know that this question refers to Rails 3, but I created PortableRails exactly because of this (which has recently been updated to support Rails 4). Just make sure that you run bundle --local instead of just bundle (which is what the new-action tries to perform).