调整

app/helpers/application_helper.rb

@@ -129,7 +129,8 @@ module ApplicationHelper
     if File.exist?(disk_filename(source.class, source.id))
       if source.class.to_s == 'User'
         File.join(relative_path, ["#{source.class}", "#{source.id}"])
-      elseavatars", ["#{source.class}", "#{source.id}"])
+      else
+        File.join("avatars", ["#{source.class}", "#{source.id}"])
       end
     elsif source.class.to_s == 'User'
       str = source.user_extension.try(:gender).to_i == 0 ? "b" : "g"