ROR + Migration命令给出了奇怪的错误信息

Question

Facing a strange problem while running migration command for creating one column.

from /usr/lib/ruby/1.9.1/rubygems/specification.rb:777:in `block in activate_dependencies'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:766:in `each'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:766:in `activate_dependencies'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:750:in `activate'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:780:in `block in activate_dependencies'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:766:in `each'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:766:in `activate_dependencies'
from /usr/lib/ruby/1.9.1/rubygems/specification.rb:750:in `activate'
from /usr/lib/ruby/1.9.1/rubygems.rb:212:in `rescue in try_activate'
from /usr/lib/ruby/1.9.1/rubygems.rb:209:in `try_activate'

无法在控制台配置此错误的原因。

Answer 1

经过长期的Google斗争，我得到了解决问题的解决方案。

将bundle exec添加到我的迁移命令

bundle exec rails generate migration AddStatusToUser status:boolean

因为我发现一些问题是由于宝石的冲突而发生的。