I got this error:

#+BEGIN_EXAMPLE
Debugger entered--Lisp error: (error "Invalid file location: nil")
  signal(error ("Invalid file location: nil"))
  error("Invalid file location: %S" nil)
  org-capture-expand-file((concat org-directory "/Contacts/Contacts.org"))
  org-capture-target-buffer((concat org-directory "/Contacts/Contacts.org"))
  org-capture-set-target-location()
  org-capture(nil)
  funcall-interactively(org-capture nil)
  call-interactively(org-capture nil nil)
  command-execute(org-capture)
#+END_EXAMPLE

I define org-capture template with this:

#+BEGIN_SRC emacs-lisp
(setq org-contacts-files '("~/Org/Contacts/Contacts.org"))

(setq org-capture-templates
      (append '(("C" "[C]ontact"
                 entry (file (car org-contacts-files))
                 "** %^{NAME}
:PROPERTIES:
:NICK: %^{Nick}
:AVATAR: %^{Avatar}
:END:"
                 :empty-lines 1
                 :jump-to-captured t
                 )
                )
              org-capture-templates))
#+END_SRC

I'm using Org-mode source code "master" branch. and update to latest.
(current latest commit: - 379a22c9c * master upstream/master Revert
"ox-texinfo: Move menu handling from sections to headlines") My org-capture
template works before, but now it does not work. Seems currently source
code does not support "sexp" ~(file (car org-contacts-files))~ which
returns a path to file.


[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
IRC(freeenode): stardiviner                     Twitter:  @numbchild
Key fingerprint = 9BAA 92BC CDDD B9EF 3B36  CB99 B8C4 B8E5 47C3 2433
Blog: http://stardiviner.github.io/