Question

我终于安装了宝石pg。现在，当我去迁移数据库时，我得到以下内容：

$ rake db:migrate
(in c:/rubyDev/bsbaslic)
rake aborted!
no such file to load -- 1.9/pg_ext
c:/Ruby192/lib/ruby/gems/1.9.1/gems/pg-0.10.0/lib/pg.rb:10:in `require'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/pg-0.10.0/lib/pg.rb:10:in `<top (required)>'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:64:in `require'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:64:in `block (2 levels) in require'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:62:in `each'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:62:in `block in require'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:51:in `each'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler/runtime.rb:51:in `require'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.3/lib/bundler.rb:112:in `require'
c:/rubyDev/bsbaslic/config/application.rb:7:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
c:/rubyDev/bsbaslic/Rakefile:4:in `<top (required)>'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `load'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
c:/Ruby192/lib/ruby/1.9.1/rake.rb:1991:in `run'
c:/Ruby192/bin/rake:31:in `<main>'

有没有人对它的寻找有什么想法？我在pg.rb所在的目录中有一个pg_ext.so文件。

Answer 1

Windows程序无法加载.so个文件 - 而是加载.dll个文件。您需要为Windows编译的pg版本，或者您需要在Linys环境（如msys或cygwin）中运行Ruby。

Answer 2

问题在于你的pg gem版本。 windows pg 0.9.0有一个特殊版本。为了让它在Windows上工作：

卸载当前的pg 0.10.0
按如下方式安装pg： gem install pg --version = 0.9.0 - --with-pg-config = / short / path / to / postresql / bin （要获得简短路径，您只需将目录更改为PostgrSQL bin，然后在cmd中键入命令，它将自动更改为短路径的路径）
然后编辑您的项目Gemfile以使用正确的pg gem版本（0.9.0）

就是这样。

祝你好运

rake db：迁移postgreSQL

2 个答案: