[gdal-dev] Cannot find proj.db

Thu Mar 30 10:20:44 PDT 2023

Elena,

I have had this same problem.  We have a few methods of setting the location
of the proj.db file.  When we call from C++ (or from python), there’s a
function called OSRSetPROJSearchPaths that’s handy.  If you’re calling from
a command line, you could try setting your environment variable just before
calling your function (set “PROJ_LIB=c:\path\to\proj\”). I think there’s
also a command line option to set your PROJ_LIB.  You could try adding
“--config PROJ_LIB “c:\path\to\proj”” to your command line and see what that
does.  I haven’t personally tried it.

I haven’t had to do these things as much with the python/conda distributions
of the commandline programs for whatever reason.

HTH,

Chris

From: gdal-dev [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of Elena
Ruiz
Sent: Thursday, March 30, 2023 6:02 AM
To: gdal-dev at lists.osgeo.org
Subject: [gdal-dev] Cannot find proj.db

Hello, 

I am using GDAL 3.6.2 on Windows 11 and am having problems with the
following error:

ERROR 1: PROJ: proj_create_from_database: Cannot find proj.db

I have set as environment variable PROJ_LIB=
“D:\MDT\V9\bin\gdal\gdal_latest\share”  and PROJ_DATA=
“D:\MDT\V9\bin\gdal\gdal_latest\share”, as user variable and in the system
variable, but it still doesn't work and the file proj.db exits in
D:\MDT\V9\bin\gdal\gdal_latest\share  .

D:\MDT\V9\bin\gdal\gdal_latest\x64>gdalwarp -s_srs EPSG:4326 -t_srs
EPSG:25831 -r near -of GTiff C:\Users\elena\Downloads\D37531385_0101_DTM.asc
C:/Users/elena/Downloads/D37531385_0101_DTM_25831_qgis_.tif

ERROR 1: PROJ: proj_create_from_database: Cannot find proj.db

ERROR 1: Translating source or target SRS failed:

EPSG:4326

The funny thing is that I have the same version of GDAL installed on my
computer using Anaconda3, to do tests, and from the anaconda directory it
works for me, and if I look in the environment variables I don't see any
path that refers to where Anaconda has the Proj.db. Is there another way to
set the PROJ_LIB path besides adding an environment variable? Is there any
way to know where the PROJ_LIB is looking for my version of GDAL?

C:\Users\elena\Anaconda3\envs\mygdal\Library\bin>gdalwarp -s_srs EPSG:4326
-t_srs EPSG:25831 -r near -of GTiff
C:\Users\elena\Downloads\D37531385_0101_DTM.asc
C:/Users/elena/Downloads/D37531385_0101_DTM_25831_qgis_.tif

Creating output file that is 1003P x 1201L.

Processing C:\Users\elena\Downloads\D37531385_0101_DTM.asc [1/1] : 0Using
internal nodata values (e.g. -9999) for image
C:\Users\elena\Downloads\D37531385_0101_DTM.asc.

Copying nodata values from source
C:\Users\elena\Downloads\D37531385_0101_DTM.asc to destination
C:/Users/elena/Downloads/D37531385_0101_DTM_25831_qgis_.tif.

...10...20...30...40...50...60...70...80...90...100 - done.

Thank you and regards

  _____  

  <https://www.aplitop.com/descargas/firma1.jpg> 

Elena Ruiz 
Sofware Development & Technical Support
Tel. +34 952 43 97 71 
eruiz at aplitop.com
Sumatra, 9 - 29190 Málaga (Spain)
www.aplitop.com

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