Forest road Designer plugin not working after updating to QGIS 3.32 Lima

[Xadamo]

After upgrading to latest version of QGIS this plugin is giving errors upon installation and cannot be used.

See error log below:

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

ModuleNotFoundError: No module named 'frd_utils' Traceback (most recent call last): File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\optimizer_qgis.py", line 47, in from .route_optimizer import a_star File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\route_optimizer\a_star.py", line 19, in import scipy.interpolate File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\OSGeo4W\apps\Python39\lib\site-packages\scipy\interpolate__init.py", line 167, in from ._interpolate import * File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\OSGeo4W\apps\Python39\lib\site-packages\scipy\interpolate_interpolate.py", line 8, in import scipy.special as spec File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\OSGeo4W\apps\Python39\lib\site-packages\scipy\special\init__.py", line 689, in from . import add_newdocs, basic, orthogonal, specfun, sf_error, spfun_stats File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) ImportError: DLL load failed while importing specfun: The specified module could not be found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 423, in _startPlugin plugins[packageName] = package.classFactory(iface) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner__init__.py", line 34, in classFactory from .forest_road_designer import ForestRoadDesigner File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\forest_road_designer.py", line 31, in from .processing_provider.provider import Provider File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\processing_provider\provider.py", line 4, in from .frd_processing_algorithm import ForestRoadDesignerProcessingAlgorithm File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\processing_provider\frd_processing_algorithm.py", line 33, in from .. import optimizer_qgis as oq File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\forestroaddesigner\optimizer_qgis.py", line 51, in import frd_utils File "C:\OSGeo4W/apps/qgis/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) ModuleNotFoundError: No module named 'frd_utils'

Python version: 3.9.5 (tags/v3.9.5:0a7dcbd, May 3 2021, 17:27:52) [MSC v.1928 64 bit (AMD64)] QGIS version: 3.32.2-Lima Lima, c0b88339

Python Path: C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\road_slope_calculator C:\Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\OpenTopography-DEM-Downloader C:/OSGeo4W/apps/qgis/./python C:/Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python C:/Users/..../AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins C:/OSGeo4W/apps/qgis/./python/plugins C:\OSGeo4W\apps\grass\grass83\etc\python C:\Users....\Documents C:\OSGeo4W\bin\python39.zip C:\OSGeo4W\apps\Python39\DLLs C:\OSGeo4W\apps\Python39\lib C:\OSGeo4W\bin C:\Users....\AppData\Roaming\Python\Python39\site-packages C:\OSGeo4W\apps\Python39 C:\OSGeo4W\apps\Python39\lib\site-packages C:\OSGeo4W\apps\Python39\lib\site-packages\win32 C:\OSGeo4W\apps\Python39\lib\site-packages\win32\lib C:\OSGeo4W\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\qgis2web C:\Users....\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins

[David-Gonzalez-Panoimagen]

It seems to be a problem with scipy library. I tried to reproduce the error installing QGIS 3.32 with OSGeo4W installer but works with no issues. The standalone installation also works correctly. Try to import scipy from Python console in QGIS. If throws an error, try to install spicy library. Otherwise you can get scipy version installed (scipy.version) . QGIS 3.32 is running with scipy 1.6.2 version.

[Xadamo]

I am still not able to make the plugin work actually. I used it with much satisfaction in the past.

[Xadamo]

Hola David,

I have tried everything, reinstalling QGIS, downgrading to older version, upgrading to 3.34, but the problems is still there. I dont kno how to operate the python conmsole to install scipy and spicy as you suggest.. Could you provide instructions?

[Xadamo]

Completely uninstalling everything with OSGEO4 and manually deleting everything related to QGIS, plugins and Python solved the issue finally.

I am using the plugin currently a lot and in general I am very happy with it. However, it does seem to make QGIS crash quite regularly. When working with it intensely, I need to constantly save my work as QGIS is crashing about every 30-60 minutes.

Is anyone else expereincing this?

[Xadamo]

User Feedback

The crash typically happens when I start editing features, right after I switched from the interactive road design mode of the plugin to the normal feature editing mode in QGIS.

Typical QGIS Crash report while saving newly created feature with forest road designer plugin:

Report Details

Python Stack Trace

Windows fatal exception: access violation

Current thread 0x00006bb4 (most recent call first):
<no Python frame>

Stack Trace

QHashData::free_helper :
QHeaderView::logicalIndexAt :
QHeaderView::logicalIndexAt :
QObject::qt_static_metacall :
QObject::destroyed :
QWidget::~QWidget :
QAbstractScrollAreaPrivate::~QAbstractScrollAreaPrivate :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsScrollArea::QgsScrollArea :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsRasterHistogramWidget::QgsRasterHistogramWidget :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsMapLayerConfigWidgetFactory::operator= :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsMultiBandColorRendererWidget::QgsMultiBandColorRendererWidget :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsAttributeTableDialog::~QgsAttributeTableDialog :
QObjectPrivate::deleteChildren :
QWidget::~QWidget :
QgsAttributeTableDialog::~QgsAttributeTableDialog :
QObject::event :
QWidget::event :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QCoreApplicationPrivate::sendPostedEvents :
qt_plugin_query_metadata :
QEventDispatcherWin32::processEvents :
qt_plugin_query_metadata :
QEventLoop::exec :
QCoreApplication::exec :
main :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info QGIS Version: 3.34.1-Prizren QGIS code revision: 133927424d Compiled against Qt: 5.15.3 Running against Qt: 5.15.3 Compiled against GDAL: 3.8.1 Running against GDAL: 3.8.1

System Info CPU Type: x86_64 Kernel Type: winnt Kernel Version: 10.0.22621