我與一些代碼,有一個工作紅寶石標準庫的一部分: begin
require 'digest/hmac'
USE_EMBEDDED_HMAC = false
rescue
puts "HMAC, not found in standard lib." + $!.message
require 'hmac-sha1'
USE_EMBEDDED_HMAC = true
end
,因爲我
Windows Vista中,紅寶石v 3.3.5 C:\>gem install rmagick
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
C:/Ru
我有這樣的錯誤,當我嘗試啓動腳本/服務器: /opt/ruby1.8/lib/ruby/site_ruby/1.8/rubygems.rb:827:in `report_activate_error': RubyGem version error: rack(1.0.0 not ~> 1.0.1) (Gem::LoadError)
from /opt/ruby1.8/lib/ruby/site_