Dear Mauro,
Tank you for developing the useful vectorfieldcalc tool for QGIS. I used to use it under Qgis 2.7 without issue. I am now using QGIS 3.6 and the tool is not working anymore. Giving it two rasters with east and north velocity components and asking for any of the output available, I get "Unable to write magn.asc" even if I do have the rights to do so. The file is created but empty.
Any clue on what is going on ?

I am running Ubuntu 18.04 with matplotlib 3 and Qgis 3.6
Thank for the help,
Marianne

Hi,
I'm having a little not so little issue. I would like to use the Vector menu of QGIS but there are none of the "by default" plugin that work. I get this message error every time I want to use it. Additionally, there is the data management tools that I would like to use that does not show up.
I tried reinstalling the plugins but nothing changed, even if the command say it is successfully installed.
I would greatly appreciate any input on this issue :)
All the best

Message:
Couldn't load plugin 'VectorFieldCalc' due to an error when calling its classFactory() method

ModuleNotFoundError: No module named 'gdal'
Traceback (most recent call last):
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 334, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "C:\Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\VectorFieldCalc_init.py", line 29, in classFactory
from .vfc_main import VectorFieldCal
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 793, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\VectorFieldCalc\vfc_main.py", line 17, in
from .main_dialog import MainDialog, HelpDialog
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 793, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users/-AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\VectorFieldCalc\main_dialog.py", line 17, in
from .qgis_utils.qgs import *
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 793, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\VectorFieldCalc\qgis_utils\qgs.py", line 16, in
from ..pygsf.libs_utils.gdal.gdal import *
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 793, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\VectorFieldCalc\pygsf\libs_utils\gdal\gdal.py", line 12, in
import gdal
File "C:\PROGRA1/QGIS311.12/apps/qgis-ltr/./python\qgis\utils.py", line 793, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
ModuleNotFoundError: No module named 'gdal'

Python version: 3.9.5 (tags/v3.9.5:0a7dcbd, May 3 2021, 17:27:52) [MSC v.1928 64 bit (AMD64)]
QGIS version: 3.16.12-Hannover Hannover, be6cb03

Python Path:
C:/PROGRA1/QGIS311.12/apps/qgis-ltr/./python
C:/Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python
C:/Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins
C:/PROGRA1/QGIS311.12/apps/qgis-ltr/./python/plugins
C:\PROGRA1\QGIS311.12\bin\python39.zip
C:\PROGRA1\QGIS311.12\apps\Python39\DLLs
C:\PROGRA1\QGIS311.12\apps\Python39\lib
C:\PROGRA1\QGIS311.12\bin
C:\PROGRA1\QGIS311.12\apps\Python39
C:\PROGRA1\QGIS311.12\apps\Python39\lib\site-packages
C:\PROGRA1\QGIS311.12\apps\Python39\lib\site-packages\win32
C:\PROGRA1\QGIS311.12\apps\Python39\lib\site-packages\win32\lib
C:\PROGRA1\QGIS311.12\apps\Python39\lib\site-packages\Pythonwin
C:/Users/-/AppData/Roaming/QGIS/QGIS3\profiles\default/python
C:\Users-\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\vector_tiles_reader\ext-libs
C:/Users/-/Desktop/3_PhD/31_PhD/313_Kersa/5_QGIS-project