迁移错误：Gem：Module未定义的方法`cache' [英] migrate error: undefined method `cache' for Gem:Module

问题描述

通过rails应用程序进行迁移时出现此错误

未定义方法`cache'for Gem：Module

正在使用

Rails 3.2.9

Ruby 1.8.7

Ubuntu 12.04

  rake db：migrate --trace 
 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9 .15 / lib / extlib / object.rb：138：warning：重新定义了方法;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/symbol.rb:3：warning：method redefined;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/time.rb:41：warning：重新定义了方法;丢弃旧的to_datetime 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/boolean.rb:2：warning：method redefined;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/boolean.rb:8：warning：重新定义方法;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/module.rb:14：warning：method redefined;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/nil.rb:2：warning：重新定义了方法;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/numeric.rb:2：warning：重新定义了方法;丢弃旧的try_dup 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:477：warning：重新定义方法;丢弃旧的orm 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:494：warning：重新定义方法;丢弃旧的test_framework 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:510：warning：重新定义方法;丢弃旧的template_engine 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/core_ext/kernel.rb:15：警告：（...）解释为分组表达式
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/controller/ abstract_controller.rb：620：警告：将*解释为参数前缀
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb -core / controller / abstract_controller.rb：195：warning：redefine _template_root = 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/ merb-core / gem_ext / erubis.rb：9：warning：重新定义了方法;丢弃旧的convert_input 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/config.rb:158：warning：instance变量@configuration未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：warning：instance变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：warning：instance变量@root未初始化
 Merb root：/ home / rajendran / projects / myapp 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1 .3 / lib / merb-core.rb：310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1 .3 / lib / merb-core.rb：310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1 .3 / lib / merb-core.rb：310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1 0.3 / lib目录/merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib /merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310：警告：实例变量@root未初始化
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/core_ext.rb:43：警告：重新定义方法;丢弃旧的to_time 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的text_field 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的password_field 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的hidden_​​field 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的file_field 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的text_area 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的选择
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的check_box 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的radio_button 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346：警告：重新定义方法;丢弃旧的radio_group 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:28：warning：method重新定义;丢弃旧标记
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:38：warning：method重新定义;丢弃旧的open_tag 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:43：warning：method重新定义;丢弃旧的close_tag 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:51：warning：method重新定义;丢弃旧的self_closing_tag 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-mailer-1.1.3/lib/merb-mailer/mailer.rb:104：warning：` *'解释为参数前缀
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/actions/action.rb:7：warning：方法重新定义;丢弃旧的来源= 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/actions/action.rb:13：warning：method redefined ;丢弃旧目标= 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/generator.rb:596：warning：method redefined;丢弃旧的destination_root 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/core_ext/kernel.rb:3：warning：method redefined;丢弃旧的instance_exec 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:4：warning：method重新定义;丢弃旧的相同？ 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:25：warning：method redefined;丢弃旧的调用！ 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:34：warning：method redefined;丢弃旧的撤销！ 
耙子中止！ 
用于Gem的未定义方法`cache'：模块
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb ：62：在`find_latest_gem_paths'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb:73:in`generator_files '
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb:48:in`discover！'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen.rb:32 
 /home/rajendran/.rvm/gems /ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in`require'
 /home/rajendran/.rvm/gems/ruby-1.8 .7-p374 @ global / gems / bundler-1.3.5 / lib / bundler / runtime.rb：72：在'require'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374 @ global / gems / bundler-1.3.5 / lib / bundler / runtime.rb：70：在`each'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems /bundler-1.3.5/lib/bundler/runtime.rb:70:in`require'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374@glob al / gems / bundler-1.3.5 / lib / bundler / runtime.rb：59：在`each'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/ bundler-1.3.5 / lib / bundler / runtime.rb：59：在'require'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3。 5 / lib / bundler.rb：132：在'require'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb- core / bootloader.rb：400：在`load_dependencies'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/ bootloader.rb：375：在'run'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb： 615：`load_dependencies'
 / home / rajendran / projects / myapp / Rakefile：23 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8。 7 / lib / rake.rb：2383：在`load'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb： 2383：在'raw_load_rakefile'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2017:in`load_rakefile'
 /home/rajendran/.r vm / gems / ruby​​-1.8.7-p374 / gems / rake-0.8.7 / lib / rake.rb：2068：在`standard_exception_handling'
 /home/rajendran/.rvm/gems/ruby-1.8。 7-p374 / gems / rake-0.8.7 / lib / rake.rb：2016：in`load_rakefile'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake- 0.8.7 / lib / rake.rb：2000：在'run'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake。 rb：2068：在`standard_exception_handling'
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:1998:in`run' 
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/bin/rake:31 
 /home/rajendran/.rvm/gems/ruby -1.8.7-p374 / bin / rake：23：在`load'中
 /home/rajendran/.rvm/gems/ruby-1.8.7-p374/bin/rake:23 
 / home /rajendran/.rvm/gems/ruby-1.8.7-p374/bin/ruby_executable_hooks:15 
  

无痕

  rake db：migrate 
（ in / home / rajendran / projects / myapp）
 Merb root：/ home / rajendran / projects / myapp 
 rak中止！ 
对于Gem：模块
 / home / rajendran / projects / myapp / Rakefile：23 
  

$ b $未定义的方法`cache' b

帮助我解决这个问题。解决方案：解决方案：

1. 我需要ruby 1.8.7（我无法升级，依赖于它的项目）
   
2. gem set 存在问题，我将gem -v 2.0更改为1.8.25这就是全部

谢谢您的支持

更新：

更新/降级gemset

  gem update  - 系统1.8.25 
  

while migrating by rails app am getting this error

undefined method `cache' for Gem:Module

Am using

Rails 3.2.9

Ruby 1.8.7

Ubuntu 12.04

rake db:migrate --trace

/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/object.rb:138: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/symbol.rb:3: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/time.rb:41: warning: method redefined; discarding old to_datetime
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/boolean.rb:2: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/boolean.rb:8: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/module.rb:14: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/nil.rb:2: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/extlib-0.9.15/lib/extlib/numeric.rb:2: warning: method redefined; discarding old try_dup
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:477: warning: method redefined; discarding old orm
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:494: warning: method redefined; discarding old test_framework
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:510: warning: method redefined; discarding old template_engine
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/core_ext/kernel.rb:15: warning: (...) interpreted as grouped expression
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/controller/abstract_controller.rb:620: warning: `*' interpreted as argument prefix
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/controller/abstract_controller.rb:195: warning: redefine _template_root=
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/gem_ext/erubis.rb:9: warning: method redefined; discarding old convert_input
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/config.rb:158: warning: instance variable @configuration not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
Merb root at: /home/rajendran/projects/myapp
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:310: warning: instance variable @root not initialized
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/core_ext.rb:43: warning: method redefined; discarding old to_time
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old text_field
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old password_field
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old hidden_field
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old file_field
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old text_area
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old select
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old check_box
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old radio_button
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/form/helpers.rb:346: warning: method redefined; discarding old radio_group
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:28: warning: method redefined; discarding old tag
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:38: warning: method redefined; discarding old open_tag
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:43: warning: method redefined; discarding old close_tag
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-helpers-1.1.3/lib/merb-helpers/tag_helpers.rb:51: warning: method redefined; discarding old self_closing_tag
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-mailer-1.1.3/lib/merb-mailer/mailer.rb:104: warning: `*' interpreted as argument prefix
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/actions/action.rb:7: warning: method redefined; discarding old source=
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/actions/action.rb:13: warning: method redefined; discarding old destination=
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/generator.rb:596: warning: method redefined; discarding old destination_root
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/core_ext/kernel.rb:3: warning: method redefined; discarding old instance_exec
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:4: warning: method redefined; discarding old identical?
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:25: warning: method redefined; discarding old invoke!
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen/templater.rb:34: warning: method redefined; discarding old revoke!
rake aborted!
undefined method `cache' for Gem:Module
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb:62:in `find_latest_gem_paths'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb:73:in `generator_files'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/templater-1.0.0/lib/templater/discovery.rb:48:in `discover!'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-gen-1.1.3/lib/merb-gen.rb:32
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `require'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/bootloader.rb:400:in `load_dependencies'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core/bootloader.rb:375:in `run'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/merb-core-1.1.3/lib/merb-core.rb:615:in `load_dependencies'
/home/rajendran/projects/myapp/Rakefile:23
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2383:in `load'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2383:in `raw_load_rakefile'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2017:in `load_rakefile'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2016:in `load_rakefile'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2000:in `run'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/bin/rake:31
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/bin/rake:23:in `load'
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/bin/rake:23
/home/rajendran/.rvm/gems/ruby-1.8.7-p374/bin/ruby_executable_hooks:15

Without trace

rake db:migrate
(in /home/rajendran/projects/myapp)
Merb root at: /home/rajendran/projects/myapp
rake aborted!
undefined method `cache' for Gem:Module
/home/rajendran/projects/myapp/Rakefile:23

Help me to solve this problem..

解决方案

Solution:

1. I need ruby 1.8.7 ( i can't upgrade, its project dependent)
2. problem at gem set, i changed gem -v 2.0 to 1.8.25 that's all

Thank you for your support

Update:

update/downgrade gemset

gem update --system 1.8.25

这篇关于迁移错误：Gem：Module未定义的方法`cache'的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！