[postgis-users] ST_AsMVT Centos 7 Missing libprotobuf-c

[Björn Harrtell]

Hi David,

The problem is likely that the CentOS 7 packaged version of PostGIS 2.4 was
not made in a way to support protobuf-related functions (including
ST_AsMVT).

It does not help adding protobuf-c as a package later, it needs to be
depended on by the postgis package and available when the package is/was
created.

So, you will either have to convince the responsible for the package to
depend on the required things for protobuf-related functions or find an
alternative distribution of the package, or build postgis yourself.

Notes on the protobuf-related (optional) requirements are listed at:
https://postgis.net/docs/manual-2.4/postgis_installation.html#install_requirements

/Björn

2018-01-09 16:56 GMT+01:00 David MacDonald <davidm at yambay.com>:

> Hi,
>
> I’m currently working on a Mapbox tile server using the new MVT support in
> Postgis 2.4.  I’ve been testing with a local docker image of
> Postgres/Postgis and all is going well.
>
> However, I’ve moved to testing on a CentOS 7 VM, and have run into an
> issue.
>
>
> So I installed Postgres as follows:
>
> sudo yum -y install https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-7-x86_64/pgdg-centos10-10-1.noarch.rpm
>
> sudo yum -y install postgresql10-server postgresql10 postgis24_10 postgis24_10-utils postgis24_10-client
>
> sudo /usr/pgsql-10/bin/postgresql-10-setup initdb
>
> sudo systemctl enable postgresql-10
> sudo systemctl start postgresql-10
>
>
>
> I’ve also enabled the posts extensions.
>
> However, when I execute an ST_AsMVT query, I get the following error:
>
> 2018-01-09 23:32:31.122 AWST [9913] ERROR:  Missing libprotobuf-c
>
>
> I’ve Googled about, but I can’t seem to find anything conclusive.
>
> I tried installing protobuf:
>
> sudo yum install protobuf protobuf-c
>
> And restarting Postgres, but still the issue persists.
>
> Any help or direction would be very much appreciated.
>
> David.
>
>
>
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