rake db：create不工作
当我执行“rake db：create”命令时，我得到了以下错误
/home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:4: warning: already initialized constant MAJOR /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:5: warning: already initialized constant MINOR /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:6: warning: already initialized constant BUILD /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:3: warning: already initialized constant NUMBERS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/version.rb:9: warning: already initialized constant VERSION /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake.rb:26: warning: already initialized constant RAKEVERSION /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/early_time.rb:17: warning: already initialized constant EARLY /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/alt_system.rb:32: warning: already initialized constant WINDOWS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/application.rb:28: warning: already initialized constant DEFAULT_RAKEFILES WARNING: Possible conflict with Rake extension: String#ext already exists WARNING: Possible conflict with Rake extension: String#pathmap already exists /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/task_arguments.rb:73: warning: already initialized constant EMPTY_TASK_ARGS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/invocation_chain.rb:49: warning: already initialized constant EMPTY /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_utils.rb:10: warning: already initialized constant RUBY /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_utils.rb:84: warning: already initialized constant LN_SUPPORTED /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/dsl_definition.rb:143: warning: already initialized constant Commands /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:44: warning: already initialized constant ARRAY_METHODS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:47: warning: already initialized constant MUST_DEFINE /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:51: warning: already initialized constant MUST_NOT_DEFINE /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:55: warning: already initialized constant SPECIAL_RETURN /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:61: warning: already initialized constant DELEGATING_METHODS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:364: warning: already initialized constant DEFAULT_IGNORE_PATTERNS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake/file_list.rb:370: warning: already initialized constant DEFAULT_IGNORE_PROCS /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake.rb:64: warning: already initialized constant FileList /home/shamithc/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2/lib/rake.rb:65: warning: already initialized constant RakeFileUtils rake aborted! stack level too deep /home/shamithc/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/rake_module.rb:25 怎么解决这个问题…..
与您的Ruby版本捆绑在一起的rake版本与rake gem相冲突。 通过执行卸载rake gem
$ gem uninstall rake -a
然后再次执行该命令。