How to work with multiple version of GDAL on windows os

[earthclimate]

After I have installed QGIS from OSGeo4w and added some enviroment of GDAL to the system path on my windows 10 computer, I get some error information from SNAP GPT command line, like below:

INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
ERROR 1: Can’t load requested DLL: C:\OSGeo4W64\bin\gdalplugins\gdal_ECW_JP2ECW.dll
126: can not find module

ERROR 1: Can’t load requested DLL: C:\OSGeo4W64\bin\gdalplugins\ogr_SOSI.dll
126: can not find module

However, the gpt program seems still work on (for processing sentinel-1), and I get the anticipated result map as usual. But I am not sure whethere there is some process failed. The error infomation exists even after I have removed all the environment related to GDAL from the system path (I have not restart the computer).

I have checked that gdal used by the snap seems to be included in the “s2tbx.properties” file as below,

#SNAP configuration ‘s2tbx’
#Sun Jul 26 08:06:53 CST 2020
s2tbx.dataio.maxTime=One week
gdal.installer=7.0.0
gdal.apps.path=C:\Users\QIN\.snap\auxdata\gdal\gdal-2.1.3-win64\bin\gdal\apps

I wonder how can I fix the gdal warnings/errors with more than one gdal version installed on the computer?

[ABraun]

@earthclimate

added some enviroment of GDAL

which ones and why? QGIS finds its libraries without setting variables, and you don’t risk mixing different instances.

[earthclimate]

I have added GDAL_DATA, GDAL_DRIVER_PATH, PYTHON, PROJ_LIB et al to the system environment in order to use the QGIS module standlone from python.
Sorry for post this question in a hurry. Now I have fixed the problem by removing all the environment and restart the computer. It is better do this by temperally change the environment in the python environment.

[ABraun]

You can put some code to your Python launcher or even at the beginning of your code (e.g. as a separate function “import-paths”) to include these directories.

[marjanmarbouti]

Dear @ABraun

Actually I had problem that I mentioned here;

BigTIFF is not supported by this version of GDAL and libtiff

Dear all I have 55 Sentinel-1 data that any of them has 328Mb. I made a stack from all data and now, it has 18.5 Gb. For sure, it is not possible to open them in SNAP or QGIS. I plan to convert these tiff data to vrt but my computer cannot read them and said: ERROR 4: This is a BigTIFF file. BigTIFF is not supported by this version of GDAL and libtiff. [error4] Any solution for it? I would be thankful.

I tried to solve it by downloading below file from Esri:

legdb_api_vs2013_1_4.zip
which includes:

then I unzipped it and put its files in:

C:\ProgramData\Anaconda3\envs\mysnap\Lib\site-packages\osgeo
Then I run the code by using: python filename.py

I got below error:

ERROR 1: Can’t load requested DLL: C:\ProgramData\Anaconda3\envs\mysnap\lib\site-packages\osgeo\gdalplugins\ogr_FileGDB.dll
126: The specified module could not be found.

ERROR 1: Can’t load requested DLL: C:\ProgramData\Anaconda3\envs\mysnap\lib\site-packages\osgeo\gdalplugins\ogr_FileGDB.dll
126: The specified module could not be found.

I tried to import the dll directly by following codes based on your suggestion here:

**import ctypes **
dll=ctypes.WinDLL(“C:\ProgramData\Anaconda3\envs\mysnap\Lib\site-packages\osgeo\gdalplugins\ogr_FileGDB.dll”)

but again I got below error:

Traceback (most recent call last):
File “main.py”, line 5, in
dll=ctypes.WinDLL(“C:\ProgramData\Anaconda3\envs\mysnap\Lib\site-packages\osgeo\gdalplugins\ogr_FileGDB.dll”)
File “C:\ProgramData\Anaconda3\envs\mysnap\lib\ctypes_init_.py”, line 366, in init

I do not know what is the solution?

[ABraun]

sorry, this is beyond my understanding of libraries and drivers.

[marpet]

I can’t provide a solution either, but I found some interesting chats:

• python - Can’t load requested DLL The specified module could not be found - Geographic Information Systems Stack Exchange
• python - Does Gohlke GDAL break Command-Line GDAL/OGR in Windoiws? - Geographic Information Systems Stack Exchange

At least it shows that you are not alone having this issue.
Maybe the other results of the search are of help too.
Bing search: “gdalplugins\ogr_FileGDB.dll”

[gnwiii]

When using GDAL libraries with python they need to be built with the same compiler that was used for python. This is a common problem on Windows as many different compilers are used (Microsoft cc, GNU gcc, Intel icc, clang). If you are using Anaconda Python you should look for a suitable GDAL package from Anaconda or conda-forge. Linux is usually simpler as most packages use GNU gcc. For Windows 10, WSL2 allows you to use linux for command-line processing.