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[英]Rails/Ruby/Postgres - LoadError cannot load such file -- pg_ext
[英]Ruby/PgSQL error on Rails start : cannot load such file — pg_ext (LoadError)
我是Ruby的新手(来自Java背景),可以从Git存储库访问RoR项目。 我能够通过自制软件安装使用rbenv和Postgres构建的Ruby,并使用正确的标志安装“ pg” gem。 当我启动服务器时,以任何方式在项目上“捆绑安装”并创建了捆绑:...任何帮助将不胜感激!
$ rails s
/Users//Projects/The /vendor/bundle/gems/pg-0.14.1/lib/pg.rb:4:in require': cannot load such file -- pg_ext (LoadError)
from /Users//Projects/The Usic/vendor/bundle/gems/pg-0.14.1/lib/pg.rb:4:in <top (required)>'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:72:in require'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:72:in block (2 levels) in require'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:70:in each'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:70:in block in require'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:59:in each'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler/runtime.rb:59:in require'
from /Users//.rbenv/versions/1.9.3-p392/lib/ruby/gems/1.9.1/gems/bundler-1.3.0/lib/bundler.rb:132:in require'
问题也出现在Fedora 17中。
卸载“ pg” gem:
gem uninstall pg
运行包(假设Gemfile包含“ pg” gem):
bundle
将pg gem添加到您的Gemfile
。 然后运行:
bundle install
bundle update
我很好奇您是在通过brew安装postgres之前还是之后安装了pg gem?
如果pg是在通过brew安装Postgres之前安装的,则可能需要将其删除并重新安装,以便针对您当前的Postgres版本进行编译。
旁注:postgresapp是通过自制程序安装postgres的更好替代方法: http : //postgresapp.com/
我已经安装了pg gem list pg
我也遇到了这个问题,并使它起作用。 首先,运行命令:$ gem install pg --pre
成功安装pg-0.21.0-x64-mingw32
接下来,您更新Gemfile:gem'pg','〜> 0.21.0'。 而已。
我的rubygems环境如下:
RubyGems Environment:
- RUBYGEMS VERSION: 2.6.12
- RUBY VERSION: 2.3.3 (2016-11-21 patchlevel 222) [x64-mingw32]
- INSTALLATION DIRECTORY: C:/Ruby23-x64/lib/ruby/gems/2.3.0
- USER INSTALLATION DIRECTORY: C:/Users/armano/.gem/ruby/2.3.0
- RUBY EXECUTABLE: C:/Ruby23-x64/bin/ruby.exe
- EXECUTABLE DIRECTORY: C:/Ruby23-x64/bin
- SPEC CACHE DIRECTORY: C:/Users/armano/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: C:/ProgramData
- RUBYGEMS PLATFORMS:
- ruby
- x64-mingw32
- GEM PATHS:
- C:/Ruby23-x64/lib/ruby/gems/2.3.0
- C:/Users/armano/.gem/ruby/2.3.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- "gem" => "--no-ri --no-rdoc"
- REMOTE SOURCES:
- https://rubygems.org/
如果在gem的安装过程中pq安装不在路径中,则gem找不到它。 比宝石无法正常工作。
psql
启动psql
)。 gem unistall pg
bundle install
或gem install pg
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