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我是 ruby on rails 的新手,在尝试生成模型时遇到错误。我在终端上写了这个命令:
rails generate model Book
我得到了这个错误:
/var/lib/gems/2.3.0/gems/ffi-1.9.14/lib/ffi.rb:6:in `require': incompatible library version - /var/lib/gems/2.3.0/gems/ffi-1.9.14/lib/ffi_c.so (LoadError)
from /var/lib/gems/2.3.0/gems/ffi-1.9.14/lib/ffi.rb:6:in `rescue in <top (required)>'
from /var/lib/gems/2.3.0/gems/ffi-1.9.14/lib/ffi.rb:3:in `<top (required)>'
from /var/lib/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/native.rb:1:in `require'
from /var/lib/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/native.rb:1:in `<top (required)>'
from /var/lib/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify.rb:1:in `require'
from /var/lib/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify.rb:1:in `<top (required)>'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/linux.rb:30:in `require'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/linux.rb:30:in `_configure'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:45:in `block in configure'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `each'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `configure'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:63:in `start'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/backend.rb:28:in `start'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/listener.rb:67:in `block in <class:Listener>'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `instance_eval'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `call'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:91:in `transition_with_callbacks!'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:57:in `transition'
from /var/lib/gems/2.3.0/gems/listen-3.0.8/lib/listen/listener.rb:90:in `start'
from /var/lib/gems/2.3.0/gems/spring-watcher-listen-2.0.0/lib/spring/watcher/listen.rb:27:in `start'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:70:in `start_watcher'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:79:in `preload'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:143:in `serve'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:131:in `block in run'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `loop'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `run'
from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in `<top (required)>'
from /home/pearlstud/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/pearlstud/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'
我尝试在我的 gemfile 中添加“therubyracer”然后运行,
bundle install
但即使这样也无济于事。
我的 Rails 版本是“Rails 5.0.0.1”。
Gemfile的内容如下:
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.0'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
gem 'therubyracer'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platform: :mri
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
gem 'web-console'
gem 'listen', '~> 3.0.5'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
Gemfile.lock的内容如下:
remote: https://rubygems.org/
specs:
actioncable (5.0.0.1)
actionpack (= 5.0.0.1)
nio4r (~> 1.2)
websocket-driver (~> 0.6.1)
actionmailer (5.0.0.1)
actionpack (= 5.0.0.1)
actionview (= 5.0.0.1)
activejob (= 5.0.0.1)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 2.0)
actionpack (5.0.0.1)
actionview (= 5.0.0.1)
activesupport (= 5.0.0.1)
rack (~> 2.0)
rack-test (~> 0.6.3)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
actionview (5.0.0.1)
activesupport (= 5.0.0.1)
builder (~> 3.1)
erubis (~> 2.7.0)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
activejob (5.0.0.1)
activesupport (= 5.0.0.1)
globalid (>= 0.3.6)
activemodel (5.0.0.1)
activesupport (= 5.0.0.1)
activerecord (5.0.0.1)
activemodel (= 5.0.0.1)
activesupport (= 5.0.0.1)
arel (~> 7.0)
activesupport (5.0.0.1)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (~> 0.7)
minitest (~> 5.1)
tzinfo (~> 1.1)
arel (7.1.1)
builder (3.2.2)
byebug (9.0.5)
coffee-rails (4.2.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.2.x)
coffee-script (2.4.1)
coffee-script-source
execjs
coffee-script-source (1.10.0)
concurrent-ruby (1.0.2)
debug_inspector (0.0.2)
erubis (2.7.0)
execjs (2.7.0)
ffi (1.9.14)
globalid (0.3.7)
activesupport (>= 4.1.0)
i18n (0.7.0)
jbuilder (2.6.0)
activesupport (>= 3.0.0, < 5.1)
multi_json (~> 1.2)
jquery-rails (4.2.1)
rails-dom-testing (>= 1, < 3)
railties (>= 4.2.0)
thor (>= 0.14, < 2.0)
libv8 (3.16.14.15)
listen (3.0.8)
rb-fsevent (~> 0.9, >= 0.9.4)
rb-inotify (~> 0.9, >= 0.9.7)
loofah (2.0.3)
nokogiri (>= 1.5.9)
mail (2.6.4)
mime-types (>= 1.16, < 4)
method_source (0.8.2)
mime-types (3.1)
mime-types-data (~> 3.2015)
mime-types-data (3.2016.0521)
mini_portile2 (2.1.0)
minitest (5.9.0)
multi_json (1.12.1)
nio4r (1.2.1)
nokogiri (1.6.8)
mini_portile2 (~> 2.1.0)
pkg-config (~> 1.1.7)
pkg-config (1.1.7)
puma (3.6.0)
rack (2.0.1)
rack-test (0.6.3)
rack (>= 1.0)
rails (5.0.0.1)
actioncable (= 5.0.0.1)
actionmailer (= 5.0.0.1)
actionpack (= 5.0.0.1)
actionview (= 5.0.0.1)
activejob (= 5.0.0.1)
activemodel (= 5.0.0.1)
activerecord (= 5.0.0.1)
activesupport (= 5.0.0.1)
bundler (>= 1.3.0, < 2.0)
railties (= 5.0.0.1)
sprockets-rails (>= 2.0.0)
rails-dom-testing (2.0.1)
activesupport (>= 4.2.0, < 6.0)
nokogiri (~> 1.6.0)
rails-html-sanitizer (1.0.3)
loofah (~> 2.0)
railties (5.0.0.1)
actionpack (= 5.0.0.1)
activesupport (= 5.0.0.1)
method_source
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (11.2.2)
rb-fsevent (0.9.7)
rb-inotify (0.9.7)
ffi (>= 0.5.0)
ref (2.0.0)
sass (3.4.22)
sass-rails (5.0.6)
railties (>= 4.0.0, < 6)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (>= 1.1, < 3)
spring (1.7.2)
spring-watcher-listen (2.0.0)
listen (>= 2.7, < 4.0)
spring (~> 1.2)
sprockets (3.7.0)
concurrent-ruby (~> 1.0)
rack (> 1, < 3)
sprockets-rails (3.2.0)
actionpack (>= 4.0)
activesupport (>= 4.0)
sprockets (>= 3.0.0)
sqlite3 (1.3.11)
therubyracer (0.12.2)
libv8 (~> 3.16.14.0)
ref
thor (0.19.1)
thread_safe (0.3.5)
tilt (2.0.5)
turbolinks (5.0.1)
turbolinks-source (~> 5)
turbolinks-source (5.0.0)
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (3.0.2)
execjs (>= 0.3.0, < 3)
web-console (3.3.1)
actionview (>= 5.0)
activemodel (>= 5.0)
debug_inspector
railties (>= 5.0)
websocket-driver (0.6.4)
websocket-extensions (>= 0.1.0)
websocket-extensions (0.1.2)
PLATFORMS
ruby
DEPENDENCIES
byebug
coffee-rails (~> 4.2)
jbuilder (~> 2.5)
jquery-rails
listen (~> 3.0.5)
puma (~> 3.0)
rails (~> 5.0.0, >= 5.0.0.1)
sass-rails (~> 5.0)
spring
spring-watcher-listen (~> 2.0.0)
sqlite3
therubyracer
turbolinks (~> 5)
tzinfo-data
uglifier (>= 1.3.0)
web-console
BUNDLED WITH
1.12.5
最佳答案
尝试 gem pristine --all
然后 rails 生成模型书
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