ruby-on-rails – rake因“虚拟计时器已过期”而失败

> OS X 10.5
> Xcode 3.1.4
> rvm 0.1.38
>ruby1.8.9-p399(通过rvm)
> rails 2.3.8

当rake尝试运行我的测试时,我开始收到此错误：

bash$rake
Virtual timer expired
bash$ # End of output!

并启用跟踪：

bash$rake --trace
** Invoke default (first_time)
** Invoke test (first_time)
** Execute test
** Invoke test:units (first_time)
** Invoke db:test:prepare (first_time)
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:abort_if_pending_migrations
** Execute db:test:prepare
** Invoke db:test:load (first_time)
** Invoke db:test:purge (first_time)
** Invoke environment 
** Execute db:test:purge
** Execute db:test:load
** Invoke db:schema:load (first_time)
** Invoke environment 
** Execute db:schema:load
Virtual timer expired
bash$