Gem::LoadError: You have already activated rake

rake aborted! You have already activated rake 10.1.0, but your Gemfile requires rake 10.0.3. Using bundle exec may solve this. [email protected]:~/moumentei-master$ rake db:create rake aborted! You have already activated rake 10.1.0, but your Gemfile

解决办法: 指定sqlite3的版本为1.3.13: gem 'sqlite3', '~> 1.3.13' 然后运行bundle update Gem::LoadError: Specified 'sqlite3' for database adapter, but the gem is not loaded 原文地址:https://www.cnblogs.com/wtyqer/p/10792159.html

错误: rake aborted! Gem::LoadError: You have already activated rake 10.3.2, but your Gemfile requires rake 10.1.1. Prepending `bundle exec` to your command may solve this. 解决: bundle exec rake db:migrate bundle update ubuntu环境 rake aborted!

一.新建一个gem bundle gem gemName 二.修改gem里的.gemspec文件 s.summary = %q{TODO: Write a gem summary} s.description = %q{TODO: Write a gem description}把%q{}里的内容进行修改,改为总结和描述,.gemspec文件主要为生成的gem显示gem的信息 三.然后在lib里的.rb文件里写入要写的类和函数 四.gem build gemName.gemspec 五.rake

修改完gem sources之后,进行gem update: 之后的输出: C:\Sites\test01>gem sources -l *** CURRENT SOURCES *** http://gems.ruby-china.org/ C:\Sites\test01>gem -v 2.5.2 C:\Sites\test01>gem update --system Updating rubygems-update Fetching: rubygems-update-2.6.7.gem

环境:OSX EI 10.11.1 昨天切换gem源后,招待pod安装没有任何问题,也可以正常用$ gem sources --add https://ruby.taobao.org/ --remove https://rubygems.org/$ sudo gem install cocoapods 今天再使用的时候,在一个项目下执行pod install时半天死活没反应,无奈就ctrl+c了强制退出了.然后再执行的时候就出现错误: Library/Ruby/Site/2.0.0/rubyge

rails rake 版本问题 通常情况下,如果我们电脑上同时装了不同版本的rake时,运行rake命令时会出错,如: rake db:migrate rake aborted! You have already activated rake 0.9.2, but your Gemfile requires rake 0.9.0. Consider using bundle exec. (See full trace by running task with --trace) bundle ex

$ rails _3.0.5_ new depotrubygems.rb:244:in `bin_path': can't find gem railties (["3.0.5"]) with executable rails (Gem::GemNotFoundException)出错重装了rails sudo gem install rails --version 3.0.5后$ rails _3.0.5_ new depotdependency.rb:247:in `to_spec

转载:http://www.ibm.com/developerworks/cn/aix/library/au-aix-manage-ruby/ ? 尽管 Internet Relay Chat.论坛和版本控制工具(如 Git 和 Github)令分布式开发变得十分简单,但是重建另一个开发人员的环境将会十分困难.在一个新的开发机器上支持现有代码体,需要至少匹配初始编码人员的部分(也有可能是全部)堆栈,或是匹配增强应用程序所必需的软件组件.堆栈可能要求使用某种操作系统(比如 UNIX?.Linux?