Exercise: GDAL Error Messages

Exercise: GDAL Error Messages#

Go through the error messages and

  1. try to understand what the problem is and describe it

  2. think about or search for ways how it could be solved.

Tip

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Issue 1#

Command#

$ gdalinfo ./data/n45_e013_1arc_v3.tif

Output#

ERROR 4: ./data/n45_e013_1arc_v3.tif: No such file or directory
GDALOpen failed - 4
./data/n45_e013_1arc_v3.tif: No such file or directory

Issue 2#

Command#

gdalinfo ./data/gadm36_SVN.gpkg

Output#

ERROR 4: `./data/gadm36_SVN.gpkg' not recognized as a supported file format.
gdalinfo failed - unable to open './data/gadm36_SVN.gpkg'.

Issue 3#

Command#

ogrinfo -ro ./data/gadm36_SVN.gpkg

Output#

You want the CRS of the file, but it is not shown in the output.

INFO: Open of `./data/gadm36_SVN.gpkg'
      using driver `GPKG' successful.
1: gadm36_SVN_2 (Multi Polygon)
2: gadm36_SVN_1 (Multi Polygon)
3: gadm36_SVN_0 (Multi Polygon)

Issue 4#

Command#

gdalbuildvrt dem_buildvrt.vrt ./data/N45E014_sub.gpkg ./data/n45_e013_1arc_v3_sub.tif

Output#

0...10...20...30...40...50...60...70...80...90...100 - done.
Warning 1: gdalbuildvrt does not support heterogeneous band color interpretation: expected Undefined, got Gray. Skipping ./data/n45_e013_1arc_v3_sub.tif

Issue 5#

Command#

ogr2ogr -where ""NAME_1" == "Zasavska"" ./data/selected_district.shp ./data/gadm36_SVN.gpkg gadm36_SVN_1

Output#

ERROR 1: failed to prepare SQL: SELECT m."fid", m."geom", 
m."GID_0", m."NAME_0", m."GID_1", m."NAME_1", m."VARNAME_1", 
m."NL_NAME_1", m."TYPE_1", m."ENGTYPE_1", m."CC_1", m."HASC_1" 
FROM "gadm36_SVN_1" m WHERE NAME_1 == Zasavska
ERROR 1: Terminating translation prematurely after failed
translation of layer gadm36_SVN_1 (use -skipfailures to skip errors)

Issue 6#

Command#

$ git push origin main

Output#

To ssh://courses.gistools.geog.uni-heidelberg.de:2222/fossgis2022/home.git
 ! [rejected]        main -> main (fetch first)
error: failed to push some refs to 'ssh://courses.gistools.geog.uni-heidelberg.de:2222/fossgis2022/home.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

Issue 7#

Command#

$ v.in.ogr input=./data/gadm28_adm2_ger.gpkg

Output#

ERROR: Projection of dataset does not appear to match current location.

       Location PROJ_INFO is:
       name: ETRS89 / UTM zone 32N
       datum: etrs89
       ellps: grs80
       proj: utm
       zone: 32
       no_defs: defined
       towgs84: 0.000,0.000,0.000
       init: EPSG:25832

       Dataset PROJ_INFO is:
       name: WGS 84
       datum: wgs84
       ellps: wgs84
       proj: ll
       no_defs: defined

       Difference in: proj

       In case of no significant differences in the projection definitions,
       use the -o flag to ignore them and use current location definition.
       Consider generating a new location from the input dataset using the
       'location' parameter.
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