Non-existent dependency on node_reference

I think you ended up with the 7.x version somehow. The 6.x branch contains this:

name = Node Reference URL Widget
description = Adds an additional widget to the CCK Node Reference field that prepopulates a reference by the URL.
dependencies[] = nodereference
package = CCK
core = 6.x
; Information added by drupal.org packaging script on 2011-03-31
version = "6.x-1.8"
core = "6.x"
project = "nodereference_url"
datestamp = "1301535368"

In Drupal 7, the module is called node_reference.

Also I noticed your patch has a 1.7 version referenced in it. There was some weirdness with the 1.7 versions (they were only out for a day), which is why I released 1.8.

You cannot install 7.x-1.12, as there is a dependency to a non existing module:

Module nodereference_url cannot be enabled because it depends on the following modules which could not be found: node_reference

"node_references" is a submodule of references. You have to install References first, than it works.

I'm sorry, that I don't know how to repair that dependency and patch module. So I'm only able to report this... :-(

Best regards,
Ralf

"node_references" is a submodule of references. You have to install References first, than it works.

Right, which is explained on the project page: http://drupal.org/project/nodereference_url.