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
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
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
Starling is an open-source Message Queue Server written in Ruby. For more information, see:
Http://www.ooso.net/archives/506
The following exception occurred when installing Starling for the server today. Briefly describe the solution.
When you execute gem install memcache-client Starling, the following error occurs:
Error: http://gems.rubyforge.org/does not appear to be a rep
The reason is that the great GFW shielded http://gems.rubyforge
Some Problems about Gem, problemsgem
Advanced Software Engineering
When I was doing advanced software engineering jobs today, I encountered some problems:
After the new git clone a ruby rails projectBundle InstallSystem Error
Prompt"Gem install pg-v '0. 18.3'", After the prompt is installed, the following error is still reported:
Again according to the error message, we can see that because of less depen
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
A lot of people have already discovered that by ordering "gem install compass" To install compass, the following exception will be reported when compiling scss using "Compass compile":"File to import not found or unreadable:blueprint/typography"Google a bit, said the new compass has not included compass-bluprint.So I tried to execute the command "gem install Compass-blueprint" and manually install Compass-b
Installation Instructions
sudo gem install Cocoapods
The error message is as follows:
Error:ssl verification error at depth 2:unable to get local issuer certificate (20)Error:you must add/c=us/o=verisign, inc./ou=class 3 public Primary certification to authority local your storeError:ssl verification error at depth 1:unable to get local issuer certificate (20)Must add/c=il/o=startcom ltd./ou=secure Digital certificate signing/cn=startcom Certificat
Document reprinted by Fire Site Building InstituteTo install the oracle driver using gem in ruby on rails, see the original article:
Reference content is as follows:[1] viewing locally installed plug-insGem list orGem list -- local[2] viewing remote available plug-insGem list -- romote[3] viewing oracle driversGem list -- remote | grep oracleThe result is as follows:Activerecord-oracle_enhanced-adapter (1.1.8)[4] installing the oracle dri
The fallen gem of PHPSPL. RafaelDohms I was amazed by the previous article. I couldn't help but translate it and added some content. SPL, PHP Standard Library (StandardPHPLibrary), this article from Rafael Dohms in PHP5.0 impressed me, I couldn't help but translate it, and added some content.
SPL and PHP Standard Library (Standard PHP Library), which are built-in components and interfaces from PHP 5.0 and have gradually matured from PHP5.3. In fact,
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