Hi Nicolas

On Sat, Feb 6, 2016 at 5:41 PM, Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:

> IMO, notifying user that there's something rotten in the state of
> `org-file-apps' is enough. There's no need to go into the gory details
> of the problem.

I agree and finally found what I was missing: Add `debug' to the
handler of `condition-case' to finally not disable support of further
investigation with `toggle-debug-on-error'. It obsoletes my trials to
provide enough context about the Lisp error in the handler itself.
Remixed patch for review attached.

Michael