[OSM-dev] HTTP error 412 when deleting in JOSM

[Immanuel Scholz]

Tom Hughes schrieb:
> In message <200707101105.22341.nick at hogweed.org>
>           Nick Whitelegg <nick at hogweed.org> wrote:
> 
>> Have just tried deleting a couple of objects in the Lake District. One is a
>> segment  (26098175) and another a way (unknown ID) - they are just west of
>> Grasmere.
>>
>> I get the somewhat unusual HTTP error 412 (precodition failed). Is this a
>> symptom of server overload, a bug or something else?
> 
> Get a newer JOSM that knows to delete objects in the right order then
> as the API will no longer allow you to delete a used object which is
> what versions of JOSM before (IIRC) build 258 used to do.

JOSM never allowed the deletion of used objects, at least as far as it
knows the data. (The problem Tom is speaking of was, that JOSM send the
deletion requests in the wrong order).

It might also be, that you did not download all the data so that JOSM is
unaware of the fact that objects are still in use.


Ciao, Imi.

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