# Tentando fazer uma importação do disqus, ocorreu erro de incompatibilidade de superclasse para a classe Attribute

**URL:** <https://meta.discourse.org/t/trying-do-a-disqus-import-hit-with-superclass-mismatch-for-class-attribute-error/73875>\
**Category:** Migration\
**Created:** [10 Novembro , 2017 23:34 UTC](https://meta.discourse.org/t/trying-do-a-disqus-import-hit-with-superclass-mismatch-for-class-attribute-error/73875 "2017-11-10T23:34:18Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![Quintin\_Par](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/quintin_par/32/120500_2.png) [@Quintin\_Par](https://meta.discourse.org/u/Quintin_Par)\
**Post date:** [10 Novembro , 2017 23:34 UTC](https://meta.discourse.org/t/trying-do-a-disqus-import-hit-with-superclass-mismatch-for-class-attribute-error/73875/1 "2017-11-10T23:34:18Z")

</div>

Trying to do a disqus comments import

`root@ss-app:/var/www/discourse/script/import_scripts# RAILS_ENV=production ruby disqus.rb --file=/tmp/disqus-export.xml --dry_run`

and I am hit with this error

```
root@ss-app:/var/www/discourse/script/import_scripts# RAILS_ENV=production ruby disqus.rb --file=/tmp/disqus-export1.xml --dry_run
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::LIBXML_VERSION
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::LIBXML_PARSER_VERSION
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::NOKOGIRI_USE_PACKAGED_LIBRARIES
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::NOKOGIRI_LIBXML2_PATH
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::NOKOGIRI_LIBXSLT_PATH
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::NOKOGIRI_LIBXML2_PATCHES
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::NOKOGIRI_LIBXSLT_PATCHES
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::LIBXML_ICONV_ENABLED
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::INTERNAL_GENERAL
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::EXTERNAL_GENERAL_PARSED
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::EXTERNAL_GENERAL_UNPARSED
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::INTERNAL_PARAMETER
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::EXTERNAL_PARAMETER
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/nokogiri.so: warning: already initialized constant Nokogiri::XML::EntityDecl::INTERNAL_PREDEFINED
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/version.rb:3: warning: already initialized constant Nokogiri::VERSION
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/version.rb:3: warning: previous definition of VERSION was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/version.rb:100: warning: already initialized constant Nokogiri::VERSION_INFO
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/version.rb:100: warning: previous definition of VERSION_INFO was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:29: warning: already initialized constant Nokogiri::XML::ParseOptions::STRICT
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:29: warning: previous definition of STRICT was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:31: warning: already initialized constant Nokogiri::XML::ParseOptions::RECOVER
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:31: warning: previous definition of RECOVER was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:33: warning: already initialized constant Nokogiri::XML::ParseOptions::NOENT
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:33: warning: previous definition of NOENT was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:35: warning: already initialized constant Nokogiri::XML::ParseOptions::DTDLOAD
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:35: warning: previous definition of DTDLOAD was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:37: warning: already initialized constant Nokogiri::XML::ParseOptions::DTDATTR
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:37: warning: previous definition of DTDATTR was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:39: warning: already initialized constant Nokogiri::XML::ParseOptions::DTDVALID
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:39: warning: previous definition of DTDVALID was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:41: warning: already initialized constant Nokogiri::XML::ParseOptions::NOERROR
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:41: warning: previous definition of NOERROR was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:43: warning: already initialized constant Nokogiri::XML::ParseOptions::NOWARNING
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:43: warning: previous definition of NOWARNING was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:45: warning: already initialized constant Nokogiri::XML::ParseOptions::PEDANTIC
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:45: warning: previous definition of PEDANTIC was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:47: warning: already initialized constant Nokogiri::XML::ParseOptions::NOBLANKS
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:47: warning: previous definition of NOBLANKS was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:49: warning: already initialized constant Nokogiri::XML::ParseOptions::SAX1
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:49: warning: previous definition of SAX1 was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:51: warning: already initialized constant Nokogiri::XML::ParseOptions::XINCLUDE
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:51: warning: previous definition of XINCLUDE was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:53: warning: already initialized constant Nokogiri::XML::ParseOptions::NONET
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:53: warning: previous definition of NONET was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:55: warning: already initialized constant Nokogiri::XML::ParseOptions::NODICT
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:55: warning: previous definition of NODICT was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:57: warning: already initialized constant Nokogiri::XML::ParseOptions::NSCLEAN
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:57: warning: previous definition of NSCLEAN was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:59: warning: already initialized constant Nokogiri::XML::ParseOptions::NOCDATA
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:59: warning: previous definition of NOCDATA was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:61: warning: already initialized constant Nokogiri::XML::ParseOptions::NOXINCNODE
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:61: warning: previous definition of NOXINCNODE was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:63: warning: already initialized constant Nokogiri::XML::ParseOptions::COMPACT
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:63: warning: previous definition of COMPACT was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:65: warning: already initialized constant Nokogiri::XML::ParseOptions::OLD10
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:65: warning: previous definition of OLD10 was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:67: warning: already initialized constant Nokogiri::XML::ParseOptions::NOBASEFIX
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:67: warning: previous definition of NOBASEFIX was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:69: warning: already initialized constant Nokogiri::XML::ParseOptions::HUGE
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:69: warning: previous definition of HUGE was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:72: warning: already initialized constant Nokogiri::XML::ParseOptions::DEFAULT_XML
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:72: warning: previous definition of DEFAULT_XML was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:74: warning: already initialized constant Nokogiri::XML::ParseOptions::DEFAULT_HTML
/usr/local/lib/ruby/gems/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/parse_options.rb:74: warning: previous definition of DEFAULT_HTML was here
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax/parser.rb:33:in `<class:Parser>': superclass mismatch for class Attribute (TypeError)
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax/parser.rb:32:in `<module:SAX>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax/parser.rb:3:in `<module:XML>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax/parser.rb:2:in `<module:Nokogiri>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax/parser.rb:1:in `<top (required)>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax.rb:3:in `require'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml/sax.rb:3:in `<top (required)>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml.rb:3:in `require'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri/xml.rb:3:in `<top (required)>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri.rb:36:in `require'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/nokogiri-1.8.1/lib/nokogiri.rb:36:in `<top (required)>'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/loofah-2.1.1/lib/loofah.rb:3:in `require'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/loofah-2.1.1/lib/loofah.rb:3:in `<top (required)>'

```

what could be the issue?

---

_[View the full topic](https://meta.discourse.org/t/trying-do-a-disqus-import-hit-with-superclass-mismatch-for-class-attribute-error/73875)._