apartment gem

Why is there this?Due to domestic network reasons (you know), the intermittent connection to the resource file that rubygems.org stored on Amazon S3 failed. So you will encounter gem install rack or bundle install when the time is not responding, specifically can be used gem install rails -V to view the execution process.This is a full rubygems.org image, you can use this instead of the official version, th

Ruby You don't need to talk about this.Rvm It is used to help you install the ruby environment, help you manage multiple Ruby environments, and help you manage the ruby environment on which the ruby application you develop uses the machine. The ruby environment is not only Ruby itself, but also a third-party Ruby plug-in on which it depends. All are managed by rvm.Rails Needless to say, this is a well-known development framework. Look at http://zh.wikipedia.org/wiki/Ruby_on_Rails in detailRubyge

Could not find Gem ' Sqlite3 (>= 0) X64-mingw32 ' in any of the gems sources listed in your gemfile or available on this m Achine.Run ' bundle install ' to install missing gems.This problem is encountered when building the Ruby Rails Web development environment under Windows,This problem occurs because the Sqlite3 is not installedInstalling Sqlite3Execute command: Gem install Sqlite3-ruby[Plain]View Plainco

Ruby on rails gem install pg cannot be installed, rubyrails gem install pg -v '0.18.2'Building native extensions. This could take a while...ERROR: Error installing pg: ERROR: Failed to build gem native extension. current directory: /Users/bevan/.rvm/gems/ruby-2.3.0/gems/pg-0.18.2/ext/Users/bevan/.rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160226-49308-

[Android Development] example 4-guess the box in which the gem is stored, android4-A mini game that implements "Guess which box the gem is placed in": There are three boxes in the main interface. clicking any box will open the box and show whether there are any gems in it, in addition, the box that has not been clicked is set to semi-transparent. The box that has been clicked is displayed normally, and the

As shown in the following figure. 1. Document creation First, create a new file in Photoshop. I use a small size for 300x300 pixels, the default resolution (72), which may be a good idea if you want to make a larger icon after resizing. You may want to add a nice, simple background. Now, just use the light gradient background. 2. Enable grid/Create graphics Now, let's start the gem shape. First, you need to make the grid (

Very beautiful transparent texture gem text effect, only need to use the layer style, just set the parameter changes, can make a lot of effect. Effect Chart: 1. Create a new document, width 600, height 340. 2. Create an adjustment layer, select the gradient, and make the following changes, and create the way your background is displayed: 3. Now use Photoshop's Text tool to create your text, white color. This is the word '

The Ruby on Rails Web site says that running gem install rails after installing Ruby is good. But the whole process took me a couple of hours. First of all, OpenSUSE 13.1 comes with Ruby 2.0.0p-247, and I offload Ruby because I intend to use rbenv to manage Ruby: $ sudo zypper rm Ruby As a result, Konsole is gone, YAST is gone, and it seems that the KDE desktop has been unloaded. Then you will have to use the system itself. But the

Give you illustrator software users to detailed analysis to share the design of the beautiful texture of the flat gem icon production tutorials. Tutorial Sharing: Let's take a look at the final effect chart: Use the line tool to draw two straight lines perpendicular to each other, so that they intersect exactly at the center of the square. Then use the Split function in the path lookup panel to cut the square into f

Label:"' Block in Replace_gem ' when executing rails s: Install the MYSQL2 adapter: ' Gem install Activerecord-mysql2-adapter '" Error: [Email protected]:/var/www/ashelf$ Rails S=booting Webrick= Rails3.2.22.1Application startinginchDevelopment on http://0.0.0.0:3000= = Call with-D to detach= CtrlC to shutdown server Exiting/home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/LIB/BUNDLER/RUBYGEMS_INTEGRATION.RB:314:inch' BlockinchReplace_gem': Pl

Rescue star for spelling mistakes in Ruby programming: did_you_mean gem I often encounter spelling errors in Ruby development when class names or method names are misspelled. But I don't know it's just a spelling mistake. I will repeat it: "It's so strange. It looks okay ..." I often waste a lot of time on this kind of thing, but the reason may be that a character is wrong. I hate such a thing. That's why I developed did_you_mean

Ruby That's not much to say. RVM Used to help you install a ruby environment, help you manage multiple ruby environments, and help you manage which Ruby environment you use on your computer for each ruby application you develop. The ruby environment is not just Ruby itself, it also includes dependent Third-party Ruby Plug-ins. are managed by RVM. Rails This also needless to say, the famous development framework. See Http://zh.wikipedia.org/wiki/Ruby_on_Rails in detail RubyGems RubyGems is

Recently participated in the seven-cow demo contest, decided to use Ruby development. So I ran into some questions and then solved them, and here's a record. In Ruby, Gem is a very common thing, it is the equivalent of Plug-ins, Ruby has a lot of great gems, to avoid the repetition of our wheels, my demo need to install gem, but in order to achieve better, first detect whether the

Tags: mysql gem ruby xampp windowsYou may need to generate LIBMYSQLCLIENT.A from Libmysql.dll before: sourceCD C:\xampp-1.8.3\mysql\libC:\DevKit-tdm-32-4.5.2-20111229-1559-sfx\devkitvars.batPexports.exe Libmysql.dll > Libmysql.defSource: C:\strawberry\c\bin\pexports. EXE Fortunately installed Perl, or do not know where to find this pexports tool under theDlltool--input-def libmysql.def--dllname libmysql.dll--output-lib libmysqlclient.a-kC:\redmine-2.6

Understanding Activerecord::concern:Reference: The difference between include and extend:Https://www.cnblogs.com/chentianwei/p/9408963.htmlThe traditional module looks like this:Module M def self.included (Base) Base (a Class) extends a module "Classmethods", and the base class method contains the methods in the "Classmethods" module. base.extendclassmethods Base added a: Disabled method. Base.class_eval do, {where (disabled:true)} end end module Classmethods ... EndEndU

Error:could not find a valid gem ' cocoapods ' (>= 0), here are why:unable to download data from HTTPS://RUBYG ems.org/-errno::econnreset:connection Reset by Peer-ssl_connect (https://rubygems.org/latest_specs.4.8.gz) Two eyes, one stare! Can't download??? What the hell is this? Maybe the wall is too thick?? So, for another source use Bai. Gem Sources--add http://ruby.taobao.org/ Actually Error fetching Ht

To give you illustrator software users to detailed analysis to share the creation of exquisite shiny long projection gem of the production tutorial. Tutorial Sharing: The network naturally has many can automatically grow the projection tool, but the tool can only serve as a kind of medium, the real study president projection, and the flexible application always starts from the practice beginning. In addition, we will use i

Rubyrailsdevkitsqlite3 environment dependencies installed with railsinstaller have been installed now want to try mysqlC: windowssystem32 gt; railsnewE: rubykk10-dmysqlInstallingmysql2 (0.3.13) Gem: Installer: ExtensionBuildError: ERROR: warning. f: railsRailsInstalle... mysqlgemrailsrailsinstallerruby Ruby rails devkit sqlite3 on which the environment installed with railsinstaller depends has been installedNow I want to try mysqlC: \ windows \

The problem that Mysql cannot be installed using Gem in Mac OS is that when Mysql is installed using Gem in Mac OS, the following error occurs: www.2cto.com Java code Building native extensions. this cocould take a while... ERROR: Error installing mysql: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby. framework/Versions/1.8/usr/bin/r

Use Fastlane for fast, continuous updates and a range of issues during installation:1. Installing the Fastlane:sudo gem install FastlaneErrorERROR: Failed to build gem native extension.--remove http://rubygems.org/-a https://ruby.taobao.org/# View current gem source gem sources* * * * sourceshttp://ruby.taobao.org- -U