Ruby on rails 在rails中使用Carrierwave时出错

我有一个网站，其中包含许多用户，每个用户都有自己的个人资料我想让他们通过carrierwave gem上传那里的图像，但我得到一个循环，有以下错误，这是我第一次使用carrierwave gem：（：

这是载波宝石：

class ImageUploader < CarrierWave::Uploader::Base
  include CarrierWave::RMagick

  storage :file

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  # Create different versions of your uploaded files:
  version :thumb do
    process :resize_to_limit => [200, 200]
  end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_white_list
    %w(jpg jpeg gif png)
  end
end

class ImageUploader[200200]
结束
#添加允许上载的扩展的白名单。
#对于图像，您可以使用以下内容：
def扩展白名单
%w（jpg jpeg gif png）
结束
结束

以下是配置文件模型：

class Profile < ActiveRecord::Base
  belongs_to :user
  belongs_to :country
  has_many :education_experiences
  has_many :working_experiences
  after_create :set_avatar_url

  validates :linkedin_url, format: { with: URI.regexp }, if: Proc.new { |company| company.linkedin_url.present? }
  validates :facebook_url, format: { with: URI.regexp }, if: Proc.new { |company| company.facebook_url.present? }
  validates :twitter_url, format: { with: URI.regexp }, if: Proc.new { |company| company.twitter_url.present? }
  validates :google_plus_url, format: { with: URI.regexp }, if: Proc.new { |company| company.google_plus_url.present? }
  mount_uploader :avatar_url,ImageUploader
  def set_avatar_url
    avatar_url if avatar_url.present?
    gravatar_id = Digest::MD5.hexdigest(user.email.downcase)
    gravatar_url = "http://gravatar.com/avatar/#{gravatar_id}.png?s=100"
    self.update avatar_url: gravatar_url
  end

  def as_json(options={})
    {
        country_id: self.country_id,
        job_title: self.job_title,
        bio: self.bio,
        linkedin_url: self.linkedin_url,
        facebook_url: self.facebook_url,
        twitter_url: self.twitter_url,
        google_plus_url: self.google_plus_url,
        avatar_url: self.avatar_url,
        education_experience: self.education_experiences,
        working_experience: self.working_experiences
    }
  end
end

类配置文件

安装gem后，您可能需要重新启动服务器。

似乎您没有粘贴整个堆栈跟踪。实际错误在哪里？

class Profile < ActiveRecord::Base
  belongs_to :user
  belongs_to :country
  has_many :education_experiences
  has_many :working_experiences
  after_create :set_avatar_url

  validates :linkedin_url, format: { with: URI.regexp }, if: Proc.new { |company| company.linkedin_url.present? }
  validates :facebook_url, format: { with: URI.regexp }, if: Proc.new { |company| company.facebook_url.present? }
  validates :twitter_url, format: { with: URI.regexp }, if: Proc.new { |company| company.twitter_url.present? }
  validates :google_plus_url, format: { with: URI.regexp }, if: Proc.new { |company| company.google_plus_url.present? }
  mount_uploader :avatar_url,ImageUploader
  def set_avatar_url
    avatar_url if avatar_url.present?
    gravatar_id = Digest::MD5.hexdigest(user.email.downcase)
    gravatar_url = "http://gravatar.com/avatar/#{gravatar_id}.png?s=100"
    self.update avatar_url: gravatar_url
  end

  def as_json(options={})
    {
        country_id: self.country_id,
        job_title: self.job_title,
        bio: self.bio,
        linkedin_url: self.linkedin_url,
        facebook_url: self.facebook_url,
        twitter_url: self.twitter_url,
        google_plus_url: self.google_plus_url,
        avatar_url: self.avatar_url,
        education_experience: self.education_experiences,
        working_experience: self.working_experiences
    }
  end
end