[英]undefined method `gsub' for nil:NilClass or how to use gsub method in rails
[英]What is causing private method `gsub` called for nil:NilClass during Rails migration?
我从来没有寄过这个。 我正在使用现有应用程序配置新服务器。 尝试运行迁移,这是输出。
root@beta:/vol/opt/dev/capistrano/foo-alpha/releases/20120330233010# RAILS_ENV=production rake db:migrate --trace
rake aborted!
private method `gsub' called for nil:NilClass
/usr/local/rvm/gems/jruby-1.6.6@global/gems/bundler-1.1.3/lib/bundler/runtime.rb:77:in `require'
org/jruby/RubyArray.java:1614:in `each'
/usr/local/rvm/gems/jruby-1.6.6@global/gems/bundler-1.1.3/lib/bundler/runtime.rb:55:in `require'
/usr/local/rvm/gems/jruby-1.6.6@global/gems/bundler-1.1.3/lib/bundler.rb:119:in `require'
/vol/opt/dev/capistrano/foo-alpha/releases/20120330233010/config/application.rb:7:in `(root)'
org/jruby/RubyKernel.java:1027:in `require'
/usr/local/rvm/rubies/jruby-1.6.6/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
/vol/opt/dev/capistrano/foo-alpha/releases/20120330233010/config/application.rb:4:in `(root)'
org/jruby/RubyKernel.java:1052:in `load'
/vol/opt/dev/capistrano/foo-alpha/releases/20120330233010/Rakefile:25:in `load_rakefile'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:501:in `raw_load_rakefile'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:82:in `load_rakefile'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:81:in `load_rakefile'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:65:in `run'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/usr/local/rvm/gems/jruby-1.6.6@foo/gems/rake-0.9.2.2/bin/rake:33:in `(root)'
org/jruby/RubyKernel.java:1052:in `load'
/usr/local/rvm/gems/jruby-1.6.6@foo/bin/rake:19:in `(root)'
我的本地笔记本电脑和现有服务器上的迁移工作正常。 config / database.yml看起来正确。 数据库已启动并正在运行,我可以连接到它。 这是什么?
我还测试了rails console
,但也无法获得控制台。 同样,私有方法gsub
调用了nil:NilClass。 它与连接数据库有某种关系,我不确定如何/为什么。
**更新**
将一些调试添加到runtime.rb之后,这是引发的异常:
#<LoadError: no such file to load -- activerecord-jdbcmysql-adapter>
混乱的部分是,它已安装:
# gem list |grep -i activerecord-jdbcmysql-adapter
activerecord-jdbcmysql-adapter (1.2.2)
这是某种RVM还是捆绑程序错误?
** 最后更新 **
我安装了Amazon Linux AMI(另一个正在运行Ubuntu),并且无法在此复制此问题。
这是捆绑程序中的错误,据报道是rvm-capistrano的错误,请检查您的Gemfile并尝试删除/注释一些宝石。
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