gem td

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

Install and use bundler in Ruby to manage multiple versions of gem and rubybundler With rbenv to manage a multi-version ruby environment, we also need a tool that can manage multiple versions of gem (such as rails), that is, bundler. The project background is not detailed, for more information, visit http://bundler.io/on the official website. Install gem install

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

Ruby-V # view Ruby version Ruby-e ''require "watir"; puts watir: IE: version'' # view watir versionGem-V # gem versionGem update # update all packagesGem update -- System # update rubygems SoftwareGem install rake # Install rake from a local or remote serverGem install rake -- remote # Install rake from a remote serverGem install watir-V (or -- version) 1.6.2 # specifyGem uninstall rake # uninstall the rake packageGem List D # list local packages wit

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

#gem install json-v ' 1.8.3 'Building native extensions. This could take a while... Error:error installing json:ERROR:Failed to build gem native extension. /usr/bin/ruby1.9.1extconf.rb/USR/LIB/RUBY/1.9.1/RUBYGEMS/CUSTOM_REQUIRE.RB:36:inch' Require': Cannot load such file--MKMF (Loaderror) from/USR/LIB/RUBY/1.9.1/RUBYGEMS/CUSTOM_REQUIRE.RB:36:inch' Require' fromExtconf.rb:1:inch' '

St indicates that it has lost more than 1 years of*st said that a continuous loss of more than 3 years, and the risk of delisting, at any time may be "delisting" then your money may not be broughtMain Board stock Code Shanghai 60 opening, Shenzhen 000 opening, usually refers to large and medium-sized enterprises; SME Board 002, the beginning of the SME; Gem 300, the beginning of the start, mainly refers to entrepreneurial, high-tech types of enterpris

When using IOS_BAIDUSDK, you need to use the cocoapods, so you need to follow the steps to continue. However, you will encounter some problems in the process:1. Sudo gem install cocoapods run this error1 rubertdemacbook-pro:~ rubert$ sudo gem install cocoapods2 /system/library/frameworks/ ruby.framework/versions/2.0/usr/lib/ruby/2.0. 0/universal-darwin14/rbconfig.rb:213in0407773 ERROR: ' cocoapods'0 in an

To give you illustrator software users to detailed analysis to share the design long drag shadow gem icon effect of the production tutorial. Tutorial Sharing: I. Drawing of Diamonds In my eyes, painting is a very interesting thing, it is to restore our lives on the basis of the addition of our imagination of the world (if you have enough imagination). So imagine the diamond you've seen before. What shape is it? Is it shine

Ruby language upgrades are still more diligent. But a large number of versions make library compatibility a big problem. Some gems indicate that Ruby is explicitly unsupported by a particular version, while some gems are incompatible with a higher version. In addition, the gem itself has a version, it is simply chaos into a porridge. Even with ruby versioning tools such as RVM and rbenv, you can't avoid falling into a hole. And some other environmenta

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