When i try to run Ruby on Rails application.... i facing the following error
symbol lookup error: /home/user/.rvm/gems/ruby-1.9.2-preview3/gems/sqlite3-ruby-1.3.0/lib/sqlite3/sqlite3_native.so: undefined symbol: sqlite3_initialize
I don't know whats the error exactly. can any one please help me out this......
I had the same issue this morning after upgrading sqlite3-ruby to 1.3.0. A quick fix is to uninstall 1.3.0 and ensure 1.2.5 is installed:
gem uninstall sqlite3-ruby --version 1.3.0
gem install sqlite3-ruby --version 1.2.5
The better option is to set your gem config to ignore 1.3.0. For Rails 2.x, in config/environment.rb:
config.gem 'sqlite3-ruby', :lib => 'sqlite3', :version => '!= 1.3.0'
or if you want it play it really safe, explicitly pull in 1.2.5:
config.gem 'sqlite3-ruby', :lib => 'sqlite3', :version => '1.2.5'
If you lock your gemfile to sqlite3-ruby you will have problems starting your application on recent Rails versions since Rails wants to have the gem named "sqlite3". The real solution to this problem is to ensure that the .bundle file that the gem creates indeed links to the right sqlite3 libraries.
By default, sqlite3 gem will link to a nonexisting library in your /usr/lib. This is NOT right. What you need to do is set the compliation options straight for your system and reinstall the sqlite3 gem, and you can easily do this using
$bundle config
Their manpage specifies what it does, but this is the command that I needed to do (I have a roll-your-own SQLite install from their site, not via brew or macports).
$bundle config build.sqlite3 --with-sqlite3-include=/usr/local/include --with-sqlite3-lib=/usr/local/lib
This will always feed the right options to the gem when you try to "bundle install" it and your gem will build properly.
Note that this problem is kinda sneaky in that it will not occur on Ruby 1.9 - apparently rbconfig there has been updated and does better library lookup. But when you are going for 1.8 compatibility - use this bundle configuration and you will be all set.
I'm had the same issue on my Dreamhost server:
> bundle exec rails c
ruby: symbol lookup error: /home/user/settings/installs/rubygems/gems/gems/sqlite3-ruby-1.3.0/lib/sqlite3/sqlite3_native.so: undefined symbol: sqlite3_initialize
I downloaded and installed SQLite3 manually in my home directory, and added LD_LIBRARY_PATH to my .bashrc. This fixed the Rails console issue.
However, I still haven't gotten the app to launch in passenger yet, I'm still working on it.
Ruby Enterprise Edition installs the sqlite3 gem automatically, and 1.3.0 seems to be the problem.
If your Rails app doesn't need sqlite3, try uninstalling the gem and restarting your app.
sudo gem uninstall sqlite3
Related
So i have this IPv6 thingy issue where i can't access rubygems and connection times out before it gets to use IPv4. One way or another i managed to install rubygems and when i type -v it all checks out. Now i need Jekyll and Jekyll-paginate-v2. I tried gem install jekyll and it didn't work for reasons stated above. Strangely enough i was able to install Jekyll via sudo apt install jekyll. Tried that with jekyll-paginate-v2 but there's no such option. So is there any way to install it without using gem command?
ok so i found a way of solving this issue.
to install a gem you need a .gem file and since you can't access rubygems.org we will get it from github. just go to your gem's github page, download it and then open bash in that directory, type gem build gemname.gemspec and it will create a .gem file in this directory. after that just use gem install --local gemname.gem and that's it.
I tried to upgrade from Bootstrap 4 Alpha 6 to 4.0.0 final version for my Rails 5 project, I'm sure the v4.0.0 gem has been installed (I also uninstalled the alpha version gem), but when I run my project (dev mode), I found the generated Bootstrap CSS files are still based on the Alpha version.
gem 'bootstrap', '~> 4.0.0'
Other than uninstalling the old gem and install the new bootstrap gem, do I need to do anything else for the upgrade? Download the physical v4.0.0 files and replace the old files in my project?
You can have look at this article:
How to update a single gem conservatively
Option 1
This will work if all dependencies for the update are already satisfied.
Find out the version you want to update to
Change it directly in Gemfile.lock
Run bundle install and see if that worked
Option 2
This will work if the gem has no shared dependencies with other gems.
Find out the version you want to update to.
Add that version explicitly to the Gemfile with , '=1.2.3'
Run bundle install
Remove the explicit version number again
Run bundle install once more
Option 3
This should always work.
Run bundle update GEMNAME
Run git diff Gemfile.lock and notice all the updates you didn't want
Revert the unwanted changes to Gemfile.lock you don't want (manually or by staging changed lines one-by-one), leaving only the desired updates.
Run bundle install and see if that worked
Option 4
There are persistent rumors that you can update a single gem by calling bundle update --source GEMNAME. However no one seems to know how and why this works, it's not a documented feature of Bundler. It might be an unintended side effect of something else.
I believe this command will try to update GEMNAME and GEMNAME only. If this leads to unmatched dependencies to other locked gems, it will fail.
If you use this option, be sure to git diff your Gemfile.lock to see if the changes are what you expected.
Option 5
Bundler >= 1.14 has a --conservative flag. Using the conservative flag allows bundle update GEM to update the version of GEM, but prevents Bundler from updating the versions of any of the gems that GEM depends on.
Credits To Author: Henning Koch
Try to keep Ruby dependencies in your Gemfile and JS/CSS ones elsewhere. Node+Yarn is a good way to do that.
If not already there
brew install yarn
Then in config/initializers/assets.rb
Rails.application.config.assets.paths << Rails.root.join('node_modules')
Now you can do this in your console:
yarn add bootstrap
It should have create a node-modules directory if not already there.
Then just add bootstrap to your JS/SCSS files
JS
//= require bootstrap/js/src/index
CSS
#import "bootstrap/scss/bootstrap";
I'm using Ruby 2.3.1 on Windows 7. Based on http://guides.rubyonrails.org/getting_started.html I tried to create a Rails 5 app afresh, but without success due to gem sqlite3-1.3.11.
The first error after "rails start" was "cannot load such file -- sqlite3/sqlite3_native (LoadError)". The problem was solved by Error when starting the Rails server on Windows . That's okay.
But it was impossible for me to fix the second error (LoadError in browser):
"Could not load 'active_record/connection_adapters/sqlite3_adapter'."
Who can help?
This problem may be sqlite is not correclty installed
Firstly check your gem file for line gem 'sqlite3' if not add and run bundle install if problem still persists follow the steps below:
Go to rubyinstaller.org
Download Devkit and setup
Remove Sqlite3 Gem by running gem uninstall sqlite3
Reinstall sqlite3 by running gem install sqlite3
Include gem 'sqlite3' in Gemfile
If still doesn't work your problem is due to version of ruby you are using. Please downgrade your ruby version or Install linux in your machine. I had also used ruby in windows and this actually caused headache and I switched it into linux.
I have just upgraded to Sass 3.3 so that I can use some of the new features (BEM styled class names, mappings, #at-root, etc). If I compile my project with Sass (via sass --watch), it works just fine. However, if I compile it using Compass (via compass watch), I get an error when using the new Sass features.
I'm using Compass 0.12.
Compass 0.12 explicitly depends on Sass 3.2. Even if you have a newer version of Sass installed, it will still compile with 3.2. In order to use Sass 3.3 or later, you have to be using Compass 1.0 or later.
Running the gem install command normally should get you the latest stable version.
gem install compass
At the time this question was asked, Compass 1.0 was still in beta. To install the latest beta version of a gem, you will need to install it using the --pre flag.
gem install compass --pre
Note that you do not need to install Sass first in order for this to work. Installing Compass will automatically install the latest version of Sass that it is compatible with.
I have Compass 1.0 installed and it still errors
Double check any other dependencies you might have (Compass extensions, etc.), one of them might be specifying an older version of Sass or Compass.
If you're using an application or build tool rather than using the commands directly, make sure they're not referencing older versions of Compass.
Windows users
As a Window user, I got an error when I tried to watch my project using the newer Compass.
LoadError on line ["36"] of C: cannot load such file -- wdm"
To fix that problem:
You must install the ruby DevKit:
Download found here: http://rubyinstaller.org/downloads/
Follow this page to properly install:
https://github.com/oneclick/rubyinstaller/wiki/Development-Kit
Now install wdm:
gem install wdm
There didn't seem to be any one place that contained the whole list of steps required, in order, to make this work, so here they are. This list is for Windows, but it may work fine on other platforms.
Install Ruby -- use 1.9.3 -- http://rubyinstaller.org/downloads .
Download the Ruby DevKit found lower on the same page -- http://rubyinstaller.org/downloads/
run it to extract it somewhere (permanent). Then cd to it, run “ruby dk.rb init” and “ruby dk.rb install” to bind it to ruby installations in your path.
gem install wdm
gem install sass
gem install compass --pre
It now is, in the latest version of Compass. Update compass to get the changes and work with Sass 3.3 and higher
Current Sass compatibility can be found here: https://rubygems.org/gems/compass
To upgrade just run
$gem install compass
Right now my bootstrap css version is v2.3.2 with following gem
gem 'bootstrap-sass', '~> 2.3.2.1'
I tried to upgrade it by using following configuration
gem 'bootstrap-sass', git: 'https://github.com/thomas-mcdonald/bootstrap-sass.git', branch: '3'
But after restarting the server and everything the version remained the same
So I tried bundle exec rake convert, maybe it could fix the problem
But it kept throwing
Don't know how to build task 'convert'
So does anyone have any idea how to implement bootstrap v3 into my rails project ??
I had to run this command
rake tmp:clear
In order to clear the cache from bootstrap v2 files
As per the instructions at rubygems.org, you have to run this command to get the new gem. I assume this is because it is using release candidates.
$ gem install bootstrap-sass --pre
I don't know how you would do this in the Gemfile.
The bootstrap-sass github page is not so clear.
You don't need to run the convert task unless you're working or developing the gem itself.
You just need to follow the bootstrap-sass rails install guide