generate-loc-seeddata execution fails #3

Activity

1. ghost assigned

   shionguha

   on Apr 11, 2012
2. shionguha commented on Apr 11, 2012

   

   shionguha

   on Apr 11, 2012

   Member

   More actions

   I tested my code on both ruby versions and put up the question on stackoverflow because I don't know what else can be going wrong. Somebody suggested a possible fix. Here is the link: http://stackoverflow.com/questions/10093440/ruby-script-running-on-local-machine-but-not-running-on-server-version-issues#comment12944991_10093440

   What do you think?
3. behas commented on Apr 11, 2012

   

   behas

   on Apr 11, 2012

   MemberAuthor

   More actions

   My guess is that on of your XPATH expressions evaluate into NIL (= don't match) and you execute some method (e.g, ".text") on NIL.

   Bernhard

   ---

   Bernhard Haslhofer
   Postdoc Associate
   Cornell Information Science
   301 College Ave.
   Ithaca, NY 14850
   WWW: http://www.cs.cornell.edu/~bh392/
   Skype: bernhard.haslhofer

   On Wednesday, April 11, 2012 at 1:14 PM, Shion wrote:

   I tested my code on both ruby versions and put up the question on stackoverflow because I don't know what else can be going wrong. Somebody suggested a possible fix. Here is the link: http://stackoverflow.com/questions/10093440/ruby-script-running-on-local-machine-but-not-running-on-server-version-issues#comment12944991_10093440

   What do you think?

   ---

   Reply to this email directly or view it on GitHub:
   https://github.com/maphub/maphub-seeddata/issues/3#issuecomment-5073824
4. shionguha commented on Apr 13, 2012

   

   shionguha

   on Apr 13, 2012

   Member

   More actions

   I just did the following to debug:

   Copied my test maps directory, test metadata directory and script to the server to test the failure of the script on the server. Got the same error i.e.

   generate-loc-seeddata.rb:177:in <main>': undefined methodparent' for nil:NilClass (NoMethodError)

   Since the script with the exact same files and metadata work on my machine, they should also work on the server. However, they don't.

   Line 177:

   record_node = identifier_nodes.first.parent.parent #This is where I am trying to get the entire metadata record for a given identifier match
   

   Since the 'parent' method cannot be found, I am a little perplexed because it comes from REXML which I understand is part of the standard Ruby library. This needs more investigation.
5. behas commented on Apr 13, 2012

   

   behas

   on Apr 13, 2012

   MemberAuthor

   More actions

   I am pretty sure that you a have a typical NULL Pointer exception, which occur when you try to execute a method (e.g., parent) on a NIL object. Maybe one of your XPATH expressions result in no match (= NIL), but you still call .parent….

   b

   ---

   Bernhard Haslhofer
   Postdoc Associate
   Cornell Information Science
   301 College Ave.
   Ithaca, NY 14850
   WWW: http://www.cs.cornell.edu/~bh392/
   Skype: bernhard.haslhofer

   On Friday, April 13, 2012 at 11:56 AM, Shion wrote:

   I just did the following to debug:

   Copied my test maps directory, test metadata directory and script to the server to test the failure of the script on the server. Got the same error i.e.

   generate-loc-seeddata.rb:177:in <main>': undefined methodparent' for nil:NilClass (NoMethodError)

   Since the script with the exact same files and metadata work on my machine, they should also work on the server. However, they don't.

   Line 177: record_node = identifier_nodes.first.parent.parent #This is where I am trying to get the entire metadata record for a given identifier match

   Since the 'parent' method cannot be found, I am a little perplexed because it comes from REXML which I understand is part of the standard Ruby library. This needs more investigation.

   ---

   Reply to this email directly or view it on GitHub:
   https://github.com/maphub/maphub-seeddata/issues/3#issuecomment-5117614