未定义Ruby常量DL和Fiddle。

Question

当我执行rake db:create时，没有定义错误常量DL和Fiddle

我用的是红宝石2.2.3。我觉得我的rjb有问题

拉克流产了！

未定义常数DL和Fiddle。/home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:in load' /home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:ininit‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:72:in block in <class:Railtie>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:36:incall’/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/懒惰_load_hooks.rb:36: in execute_hook' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:45:in块in run_load_hooks‘each' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:44:inrun_load_hooks’run_load_hooks62:在block in <module:Finisher>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:30:ininstance_exec‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:54:in run' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:55:in块in run_initializers’/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:54:in run_initializers' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:352:ininitialize!‘/home/nibo/rails_workplace/ekylibre/config/environment.rb：5:在/home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:in <top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:in中，<top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/polyglot-0.3.5/lib/polyglot.rb:65:inrequire‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in block in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:240:inload_dependency’/home/nibo/..rvm/gems/ruby2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:328:inrequire_environment!‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:457:in block in run_tasks_blocks' /home/nibo/rails_workplace/ekylibre/lib/tasks/db/tenanting.rake:19:in块在’/home/nibo/.rvm/gems/ruby-2.2.5/gems/rake-12.1.0/exe/rake:27:in <top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/bin/ruby_executable_hooks:15:ineval‘/home/nibo/中。rvm/gems/ruby-2.2.5/bin/ruby_executable_hooks:15:in <main>' LoadError: cannot load such file -- dl /home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:in加载‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:in init' /home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:72:in’块在/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:36:in中/home/nibo/..rvm/gems/ruby中的/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:45:in /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:44:in run_load_hooks' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application/finisher.rb:62:in块-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:30:in instance_exec' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:30:inrun‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:55:in block in run_initializers' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:54:inrun_initializers’/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:352:in initialize!' /home/nibo/rails_workplace/ekylibre/config/environment.rb:5:in“/home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:inrequire”中的/home/nibo/.rvm/gems/ruby-2.2.5/gems/polyglot-0.3.5/lib/polyglot.rb:65:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in块在/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/中活动_支持/依赖程序. in :240:在/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:328:in _load_dependency' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in中需要‘run_tasks_blocks中的require_environment!' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:457:in块’/home/nibo/rails_workplace/ekylibre/lib/tasks/db/tenanting.rake:19:in block in <top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/rake-12.1.0/exe/rake:27:in‘/home/nibo/.rvm/gems/ruby-2.2.5/bin/ruby_executable_hooks：15:在/usr/local/java/9-internal/jre/lib/amd64/server/libjvm.so：‘Fiddle::DLError: /home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:in无法打开共享对象文件:没有这样的文件或目录/home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:in load' /home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:62:ininit’/home/nibo/.rvm/gems/ruby-2.2.5/gems/rjb-loader-0.0.2/lib/rjb-loader.rb:72:in block in <class:Railtie>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:36:in调用‘run_load_hooks中的execute_hook' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:45:in块’/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/lazy_load_hooks.rb:44：在/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application/finisher.rb:62:in run_load_hooks‘block in <module:Finisher>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:30:ininstance_exec’/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:30:in run' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/initializable.rb:55:in块中，run_initializers/home/nibo/..rvm/gems/ruby-2。2.5/gems/railties-4.2.10/lib/rails/initializable.rb:54:in run_initializers' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:352:in初始化！‘/home/nibo/rails_workplace/ekylibre/config/environment.rb:5:in <top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:inrequire’/home/nibo/.rvm/gems/ruby-2.2.5/gems/skylight-1.3.1/lib/skylight/probes.rb:81:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/polyglot-0.3.5/lib/polyglot.rb:65:inrequire‘/home/nibo/..rvm/gems/ruby2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in block in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:240:inload_dependency‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/activesupport-4.2.10/lib/active_support/dependencies.rb:274:in require' /home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:328:inrequire_environment!’/home/nibo/.rvm/gems/ruby-2.2.5/gems/railties-4.2.10/lib/rails/application.rb:457:in block in run_tasks_blocks' /home/nibo/rails_workplace/ekylibre/lib/tasks/db/tenanting.rake:19:inblock in‘/home/nibo/.rvm/gems/ruby-2.2.5/gems/rake-12.1.0/exe/rake:27:in <top (required)>' /home/nibo/.rvm/gems/ruby-2.2.5/bin/ruby_executable_hooks:15:ineval’/home/nibo/.rvm/gems/ruby-2.2.5/bin/ruby_executable_hooks:15:in‘’

Answer 1

在更新Java时，我偶尔会遇到这个问题，原因似乎是RJB人员没有跟上新的JDK布局。尤其是，RJB依赖于在libjvm.so中的某个地方找到$JAVA_HOME/jre，但自从Java9问世以来，情况并非如此。

我找到的唯一解决办法是创建一个符号链接，以复制Ruby希望在Java主目录中找到的路径。

这在我的Linux机器上(当以根用户身份运行时)起了作用：

cd $JAVA_HOME
mkdir -p jre/lib/amd64
ln -s $JAVA_HOME/lib/server/ jre/lib/amd64/server