devise.zh-cn

devise.zh-cn.yml

zh-cn:
  errors:
    messages:
      not_found: "没有找到"
      already_confirmed: "已经确认"
      not_locked: "没有锁定"
  devise:
    failure:
      unauthenticated: '继续操作前请注册或者登录.'
      unconfirmed: '请先激活您的帐号'
      locked: '您的帐号已被锁定.'
      invalid: '邮箱或密码错误'
      invalid_token: '认证码无效.'
      timeout: '您已登录超时，请重新登录.'
      inactive: '您还没有激活帐户.'
    sessions:
      signed_in: '登录成功.'
      signed_out: '退出成功.'
    passwords:
      send_instructions: '几分后，您将收到重置密码的电子邮件.'
      updated: '您的密码已修改成功，请重新登录.'
    confirmations:
      send_instructions: '几分后，您将收到帐号激活的电子邮件.'
      confirmed: '您的帐号已经激活，请登录.'
    registrations:
      signed_up: '您的帐号已注册成功，如无意外，您将地收到一封确认邮件.'
      updated: '帐号资料更新成功.'
      destroyed: '再见！您的帐户已成功注销。我们希望很快可以再见到您.'
    unlocks:
      send_instructions: '几分后，您将收到一封帐号解锁的邮件.'
      unlocked: '您的帐号已成功解锁，请登录.'
    mailer:
      confirmation_instructions:
        subject: '确认信息'
      reset_password_instructions:
        subject: '重置密码信息'
      unlock_instructions:
        subject: '解锁信息'

thanks for translating!
Note that the 'cn' in 'zh-cn' is case SENSITIVE!
if it does not work, check whether you have all 'cn''s of the same case

FYI. The correct file name is 'devise.zh-cn.yml, instead of 'devise_zh-cn.yml'.