我读到 rbenv 只能用于为单个项目切换 Ruby 环境。我的系统上安装了 Ruby 2.4，但我只想将 2.3 版用于特定项目。我认为使用“rbenv local”会治愈疼痛，但它不会......
localhost:myproject davea$ rbenv local 2.3.0
localhost:myproject davea$ bundle install
Your Ruby version is 2.4.0, but your Gemfile specified 2.3.0
localhost:myproject davea$ ruby -v
ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-darwin16]
我如何只在这个项目中使用 Ruby 2.3？
我创建了一个 RubyGem，今天我打算更新依赖项，但现在进入 gem 的目录并输入后bundle install出现此错误，其最后一行是：
/Users/myuser/.rbenv/versions/2.6.2/lib/ruby/2.6.0/rubygems/specification.rb:2663:in `directory?': path name contains null byte (ArgumentError)
我已经重新安装了捆绑程序，更新了系统 gem 等，但似乎没有任何效果。我怎样才能避免这种情况？
预先非常感谢！
打开终端和/或使用 IDE 编写代码时，我收到以下消息：
-bash: export PATH="/Users/ryananding/.rbenv/shims:${PATH}"
export RBENV_SHELL=bash
source '/usr/local/Cellar/rbenv/1.1.2/libexec/../completions/rbenv.bash'
command rbenv rehash 2>/dev/null
rbenv() {
local command
command="${1:-}"
if [ "$#" -gt 0 ]; then
shift
fi
case "$command" in
rehash|shell)
eval "$(rbenv "sh-$command" "$@")";;
*)
command rbenv "$command" "$@";;
esac
}: No such file or directory
我已按照https://github.com/rbenv/rbenv上的说明进行操作，并且 rbenv doctor 没有显示任何错误。任何帮助，将不胜感激。
我正在建立自己的 Github 页面。我想在推送到远程仓库之前在本地机器上测试站点。我按照https://help.github.com/en/github/working-with-github-pages/creating-a-github-pages-site-with-jekyll的说明进行操作。
按照说明，我尝试了jekyll 3.8.5 new命令，因为 jekyll-3.8.5 是 github pages 使用的版本（https://pages.github.com/versions/）。但是，jekyll 在我的系统中找不到 3.8.5 版本。
这是在 macOS Catalina 上，安装了 rbenv 来管理 ruby 版本。我尝试手动调用 jekyll 3.8.5 版。那完全有效。
以下是一些尝试的片段。gem list将 3.8.5 显示为可用版本。但是jekyll 3.8.5 new命令轰炸了。
$ gem list jekyll
*** LOCAL GEMS ***
jekyll (4.0.0, 3.8.6, 3.8.5)
$ which jekyll
/Users/deep/.gem/ruby/2.6.0/bin/jekyll
$ jekyll 3.8.5 new mygh-site
fatal: 'jekyll 3.8.5' could not be found. You may need to install the jekyll-3.8.5 gem or a related …我一直在尝试弄清楚如何使用 macOS 上的 cli 将简单的 Rails 应用程序部署到 Elastic beanstalk，但每次我都会收到eb create此错误：
2020/08/06 07:22:56.626563 [INFO] Executing instruction: StageApplication
2020/08/06 07:22:56.626674 [INFO] extracting /opt/elasticbeanstalk/deployment/app_source_bundle to /var/app/staging/
2020/08/06 07:22:56.626695 [INFO] Running command /bin/sh -c /usr/bin/unzip -q -o /opt/elasticbeanstalk/deployment/app_source_bundle -d /var/app/staging/
2020/08/06 07:22:56.638657 [INFO] finished extracting /opt/elasticbeanstalk/deployment/app_source_bundle to /var/app/staging/ successfully
2020/08/06 07:22:56.640331 [INFO] Executing instruction: RunAppDeployPreBuildHooks
2020/08/06 07:22:56.640351 [INFO] The dir .platform/hooks/prebuild/ does not exist in the application. Skipping this step...
2020/08/06 07:22:56.640356 [INFO] Executing instruction: stage ruby application
2020/08/06 07:22:56.640360 [INFO] stage …最近我将我的应用程序从 Ruby 版本 2.6.1 更新到 3.0.1 并且我使用 rbenv 作为版本管理器。
但是当我尝试运行 Rails 服务器时出现错误
=> Booting Puma
=> Rails 6.1.3 application starting in development
=> Run `bin/rails server --help` for more startup options
Exiting
/home/humayun/.rbenv/versions/3.0.1/lib/ruby/gems/3.0.0/gems/activesupport-6.1.3/lib/active_support/rescuable.rb:56:in `rescue_from': Need a handler. Pass the with: keyword argument or provide a block. (ArgumentError)
from /home/humayun/.rbenv/versions/3.0.1/lib/ruby/gems/3.0.0/gems/will_paginate-3.1.8/lib/will_paginate/railtie.rb:67:in `rescue_from'
from /home/humayun/umerfarooq/Alchemy/app/controllers/application_controller.rb:2:in `<class:ApplicationController>'
from /home/humayun/umerfarooq/Alchemy/app/controllers/application_controller.rb:1:in `<main>'
我刚刚阅读了有关导致第 56 行错误的函数的信息。
应用程序控制器.rb
rescue_from Exception, with: :handle_exception
protect_from_forgery prepend: true, with: :exception
before_action :configure_permitted_parameters, if: :devise_controller?
before_action :initialize_api
def not_found
raise …安装Rbenv和Ruby 1.9.2和1.8.7,并设置当前项目的1.9.2(它以前使用1.8.7)后,耙将不再运行.运行rake routes给出消息:
Could not find rake-0.8.7 in any of the sources
Run `bundle install` to install missing gems.
跑完后bundle install.
尝试bundle exec rake routes(这是安装Rbenv之前使用的方法)会产生以下错误:
NOTE: Gem.source_index is deprecated, use Specification. It will be removed on or after 2011-11-01.
Gem.source_index called from /Library/Ruby/Gems/1.8/gems/bundler-1.0.9/lib/bundler/shared_helpers.rb:3.
Invalid gemspec in [/Users/jackrg/Documents/Novelty-Stats/vendor/local/ruby/1.8/specifications/jquery-rails-1.0.19.gemspec]: invalid date format in specification: "2011-11-26 00:00:00.000000000Z"
Invalid gemspec in [/Users/jackrg/Documents/Novelty-Stats/vendor/local/ruby/1.8/specifications/tilt-1.3.3.gemspec]: invalid date format in specification: "2011-08-25 00:00:00.000000000Z"
NOTE: Gem.source_index is deprecated, use Specification. It will be …我试图使用rbenv与ruby-build.
看似成功安装了两个工具和ruby版本之后我找不到共享库libruby.so
当我安装ruby时,是否有任何特定的指令需要给rbenv/ruby-build？
尝试过ruby 2.1.0和2.1.2.
任何帮助,将不胜感激!
我正在尝试安装ruby 2.2.3,之前我已经安装了ruby 2.2.2,
rbenv versions
system
* 2.2.2 (set by /home/emen/.ruby-version)
jruby-1.7.20
jruby-9.0.0.0.pre2Build
尝试安装Ruby 2.2.3时出现问题,下面的构建失败:
rbenv install 2.2.3
Downloading ruby-2.2.3.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.3.tar.bz2 Installing ruby-2.2.3...
BUILD FAILED (Ubuntu 14.04 using ruby-build 20160111-27-g06f1254)
Inspect or clean up the working tree at /tmp/ruby-build.20160127112741.26444 Results logged to /tmp/ruby-build.20160127112741.26444.log
我检查了日志,只是复制了一部分嫌疑人,因为另一个检查和编译过程很好:
linking shared-object objspace.so
make[2]: Leaving directory `/tmp/ruby-build.20160127112741.26444/ruby-2.2.3/ext/objspace'
compiling ossl_ssl.c
make[2]: Entering directory `/tmp/ruby-build.20160127112741.26444/ruby-2.2.3/ext/pathname'
compiling pathname.c
ossl_ssl.c:141:27: error: ‘SSLv3_method’ undeclared here (not in a function)
OSSL_SSL_METHOD_ENTRY(SSLv3),
^
ossl_ssl.c:119:69: note: in definition of macro ‘OSSL_SSL_METHOD_ENTRY’
#define OSSL_SSL_METHOD_ENTRY(name) …我正在尝试使用rbenv安装ruby 2.4.0。
我正在使用自制软件。
当我尝试以下命令时：
rbenv install ruby 2.4.0
我得到以下内容：
ruby-build: definition not found: 2.4.0
The following versions contain `2.4.0' in the name:
2.4.0-dev
2.4.0-preview1
rbx-2.4.0
See all available versions with `rbenv install --list'.
If the version you need is missing, try upgrading ruby-build:
brew update && brew upgrade ruby-build
我执行了brew更新和brew升级ruby-build命令，但仍然收到相同的消息，即未找到ruby-build定义2.4.0。
如何安装ruby 2.4.0并解决此问题？