[Qgis-user] pgRouting error

[chris hermansen]

María Teresa and list;

On Thu, May 14, 2026 at 11:49 AM Maria Teresa Vega via QGIS-User <
qgis-user at lists.osgeo.org> wrote:

> Good afternoon, I'm working with pgRouting and I'm getting the following
> error: "the function pgr_createtopology does not exist".
>
> I have executed the following sentence:
>
> alter table calles add column source integer;
>
> alter table calles add column target integer;
>
> select pgr_createTopology('calles', 0.0001, 'geom', 'id');
>
>
>
>  Can anyone please help me?
>
>
> I don't know if this is helpful or not, but I see that pgr_createTolology
has been deprecated as of version 3.8, which is itself no longer supported.

https://github.com/pgRouting/pgrouting/issues/2750

 I wonder if you have looked at the documentation here

https://docs.pgrouting.org/latest/es/pgRouting-concepts.html#create-a-routing-database

for instructions on creating topology?

-- 
Chris Hermansen · clhermansen "at" gmail "dot" com

C'est ma façon de parler.
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