我是Ruby on Rails的新手,我在配置方面遇到了一些问题.我不知道该怎么办.我安装了多次ruby,rails和Gems因为报告问题.我读了很多关于堆栈溢出的问题,没有解决的问题.我现在尝试卸载所有内容,当我尝试删除Gems时遇到一些错误,:
我报告终端上的一些问题,我不知道如何发送日志等.这是正确的卸载:
删除Gems:$ gem clean
-Uninstall ruby : $ rvm uninstall ruby(#这会卸载所有安装的ruby？)或者需要:-Uninstall by version:
$ rvm uninstall 2.1.0
和其他版本2.0.0和2.1.1
-Uninstall rvm:
$ rvm repair
$ rvm cleanup
$ rvm implode
现在再次安装一切!？
当我尝试时,我有这个:
MacBook-Pro-de-Romenig:~ romenig$ gem clean
Cleaning up installed gems...
Clean Up Complete
MacBook-Pro-de-Romenig:~ romenig$ cd ~
MacBook-Pro-de-Romenig:~ romenig$ ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [universal.x86_64-darwin13]
MacBook-Pro-de-Romenig:~ romenig$ ruby lis
ruby: No such file or directory -- lis (LoadError)
MacBook-Pro-de-Romenig:~ romenig$ ruby list
ruby: No …我正在尝试使用 docker 运行部署，并且使用以下命令成功运行：
\ndocker build -t romenigld/blog-prod .
但是当我尝试使用这个命令时：
\ndocker run --env-file .env -p 8080:4000 romenigld/blog-prod
我收到此错误：
\nError loading shared library libstdc++.so.6: No such file or directory (needed by /app/erts-12.0.2/bin/beam.smp)\nError loading shared library libgcc_s.so.1: No such file or directory (needed by /app/erts-12.0.2/bin/beam.smp)\nError relocating /app/erts-12.0.2/bin/beam.smp: __cxa_begin_catch: symbol not found\nError relocating /app/erts-12.0.2/bin/beam.smp: _ZSt24__throw_out_of_range_fmtPKcz: symbol not found\nError relocating /app/erts-12.0.2/bin/beam.smp: _Znwm: symbol not found\nError relocating /app/erts-12.0.2/bin/beam.smp: _ZSt20__throw_length_errorPKc: symbol not found\nError relocating /app/erts-12.0.2/bin/beam.smp: __cxa_guard_release: symbol not found\nError relocating /app/erts-12.0.2/bin/beam.smp: _ZNKSt8__detail20_Prime_rehash_policy11_M_next_bktEm: …我正在按照本教程安装Bootstrap with Yarn这是在rails 5.1上新版Bootstrap 4的命令,他们在这里观看:
yarn add bootstrap@4.0.0-alpha.6
所以我注意到它安装了bootstrap 4 alpha 6,JQuery3和Tether.所以它已经在.gitignore上添加:
/node_modules
/yarn-error.log
并且已经在我的config/initializers/assets.rb中设置了
Rails.application.config.assets.paths << Rails.root.join('node_modules')
我需要穿上我的application.js
//= require rails-ujs
//= require turbolinks
//= require bootstrap/dist/js/bootstrap
//= require_tree .
在我的application.scss中
/*
*= require bootstrap/dist/css/bootstrap
*= require_tree .
*= require_self
*/
我的问题是,有必要将app.js和application.scss放在JQuery和Tether上工作吗？怎么样？
我正在尝试这个:application.js
//= require rails-ujs
//= require turbolinks
//= require bootstrap/dist/js/bootstrap
//= require jquery/dist/jquery
//= require tether/dist/js/tether
//= require_tree .
application.scss
/*
*= require bootstrap/dist/css/bootstrap
*= require tether/dist/css/tether
*= require_tree .
*= require_self
*/ …我正在阅读《凤凰城指南》 1.4.6，并且正在“ 存在”这一章中。因此，我遵循本章的所有步骤，而我的控制台javascript对此有所抱怨：
app.js:1 Uncaught Error: Module build failed: SyntaxError: /Users/romenigld/workspace/phoenix/hello/assets/js/app.js: Identifier 'socket' has already been declared (21:4)
19 | import {Socket, Presence} from "phoenix"
20 |
> 21 | let socket = new Socket("/socket", {
| ^
22 | params: {user_id: window.location.search.split("=")[1]}
23 | })
24 |
at Parser.raise (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:6322)
at ScopeHandler.checkRedeclarationInScope (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:3754)
at ScopeHandler.declareName (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:3720)
at Parser.checkLVal (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:8006)
at Parser.parseVarId (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:10441)
at Parser.parseVar (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:10412)
at Parser.parseVarStatement (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:10234)
at Parser.parseStatementContent (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:9830)
at Parser.parseStatement (:4000/Users/romenigld/workspace/phoenix/hello/assets/node_modules/@babel/parser/lib/index.js:9763)
at Parser.parseBlockOrModuleBlockBody …大家好我正在学习如何使用RSpec测试代码,当我尝试运行Rspec时,我遇到了这个错误.我认为是Active Record上的一个错误,但我搜索谷歌搜索,我没有什么可以帮助我...所以我的错误是这样的:
$ rspec
/Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activerecord-4.2.7.1/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined local variable or method `ture' for #<Class:0x007f9922f68110> (NameError)
from /Users/romenigld/workspace/ebooks/everyday_rails_Testing_with_RSpec/contact_app/app/models/contact.rb:6:in `<class:Contact>'
from /Users/romenigld/workspace/ebooks/everyday_rails_Testing_with_RSpec/contact_app/app/models/contact.rb:1:in `<top (required)>'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `block in require'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:360:in `require_or_load'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:494:in `load_missing_constant'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:184:in `const_missing'
from /Users/romenigld/workspace/ebooks/everyday_rails_Testing_with_RSpec/contact_app/spec/models/contact_spec.rb:3:in `<top (required)>'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in `load'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in `block in load'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in `load'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `block in load_spec_files'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `each'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `load_spec_files'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:96:in `setup'
from /Users/romenigld/.rvm/gems/ruby-2.3.3/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:84:in `run' …