403 Forbidden when making comp_ehow

edit

Dear all,

I start to learn knowrob recently. But I run into some problems. When I try to make comp_ehow, I get an error:

Sorry I got this Could not post, because your karma is insufficient to publish links, so I,ll put the link on the comment.

      wget link1   --2014-05-09 21:29:03--  link1
      Resolving link2(link2)... 131.159.19.92
      Connecting to link2(link2)|131.159.19.92|:80... connected.
      HTTP request sent, awaiting response... 403 Forbidden
      2014-05-09 21:29:04 ERROR 403: Forbidden.

And when I follow the comp_ehow tutorial, I get this error:

 **ERROR: toplevel: Undefined procedure: rdf_triple/3 (DWIM could not correct goal)
?-**

Does anyone knows how to fix this? Thank you very much!!