mysql2

问题 When I try to create a Rails server this is what I get. It instantly runs over 500+ lines of code and comes back with this message. This is my first Ruby on Rails project. I am pretty new to coding as well. Would love some help if possible. Thank you! C:/Ruby200-x64/lib/ruby/gems/2.0.0/extensions/x64-mingw32/2.0.0/mysql2-0.3.15/my sql2/mysql2.so: [BUG] Segmentation fault ruby 2.0.0p451 (2014-02-24) [x64-mingw32] 0 enumerator.so 1 C:/Ruby200-x64/lib/ruby/2.0.0/x64-mingw32/enc/encdb.so 2 C:

问题 I have a clean build system as follows Ubuntu 11.04 Rvm 1.13.5 Ruby 1.9.3p194 Rails 3.2.3 Gem 1.8.24 MySql 5.5.24-1 (installed in /usr/local) I am trying to install the mysql2 gem (0.3.11) and getting the following problem: pal@smurf01:~$ sudo gem install mysql2 [sudo] password for pal: Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb checking for rb

问题 I've started using mysql2 gem. I'm trying to figure out a few basic things - one of them is how to explicitly perform transactions (for batch operations, like multiple INSERT/UPDATE queries). In the old ruby-mysql , this was my approach: client = Mysql.real_connect(...) inserts = [ "INSERT INTO ...", "UPDATE .. WHERE id=..", # etc ] client.autocommit(false) inserts.each do |ins| begin client.query(ins) rescue # handle errors or abort entirely end end client.commit I couldn't find much in the

问题 Gem::LoadError Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile This error occurred while loading the following files: active_record/base This is the error I get on running rails server. The mysql2 gem has been added to the Gemfile as well. I've done bundle install , and tried restarting the server but still get the error. 回答1: If you have this error when upgrading to rails 4.2.4 (also with rails 4.1.5) try using this version of mysql2:

问题 I am getting the following error message while installing, let me know if I need to post more details. I followed instructions from the following location: https://github.com/oneclick/rubyinstaller/wiki/Development-Kit I am using ruby 1.9.2p136 (2010-12-25) [i386-mingw32]. Here is what I get: E:\work_desk\trunk>gem install mysql2 -v 0.2.4 Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to

问题 I am having some problems when trying to install mysql2 gem for Rails. When I try to install it by running bundle install or gem install mysql2 it gives me the following error: Error installing mysql2: ERROR: Failed to build gem native extension. How can I fix this and successfully install mysql2 ? 回答1: On Ubuntu/Debian and other distributions using aptitude: sudo apt-get install libmysql-ruby libmysqlclient-dev Package libmysql-ruby has been phased out and replaced by ruby-mysql . This is

问题 I'm fairly new to the Rails game; I'm a front-end dev teaching myself to program. I've built a web application and decided to use the RailsKit SaaS kit to handle my registrations and such. I'm having problems just getting the default app up and running, but I'm sure it's due to my lack of knowledge and I think it has to do with getting a mysql server set up (usually I use sqlite3, but that doesn't seem to work w/ this app either). Here's the process and errors that I've come across, and I

问题 Just upgraded to RC1 of RM 3.2 on MacOS Lion and couldn't run the application anymore. Running with rvm. On startup the mysql2 gem reported it couldn't find libmysqlclient.18.dylib on a dlopen. Solved it. Posting the solution here so it will help somebody save some time. Using Apple's Property List Editor create an entry in ~/.MacOS/environment.plist call LD_LIBRARY_PATH and set the value to /usr/local/mysql/lib or whereever your MySQL libraries live. Logout and log back in and RubyMine and

问题 im using Rails 3.2.6 trying to run heroku run rake db:migrate i get the adaptar ERROR rake aborted! Please install the mysql adapter: `gem install activerecord-mysql-adapter` (mysql is not part of the bundle. Add it to Gemfile.) in my database.yml i have development, production, and test set to: adapter: mysql2 this is my gem env ➜ my_app git:(master) gem env RubyGems Environment: - RUBYGEMS VERSION: 1.8.24 - RUBY VERSION: 1.9.3 (2012-11-10 patchlevel 327) [x86_64-darwin11.4.2] - INSTALLATION

问题 I'm new to working with databases in Rails at this level, and I've looked for several hours but haven't found a solution to this specific problem. Versions: Rails 3.2.9, Ruby 1.9.3, MySQL 5.5.28 (mysql2 gem 2.9.0), Mac OS 10.7.5 Error: ActiveRecord::StatementInvalid in Action_figures#list Mysql2::Error: Unknown column 'action_figures.position' in 'order clause': SELECT `action_figures`.* FROM `action_figures` ORDER BY action_figures.position ASC Extracted source (around line #14): [list.html