QGIS 2.18.25 - unable to convert a QVariant of type 0 to a QMetaType of type 2

[andrerjesus]

Cannot install QF 3.3.3 on QGIS 2.18.25

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

TypeError: unable to convert a QVariant of type 0 to a QMetaType of type 2
Traceback (most recent call last):
File "C:/PROGRA1/QGIS21.18/apps/qgis-ltr/./python\qgis\utils.py", line 333, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "C:/Users/random_user/.qgis2/python/plugins\quickfinder_init_.py", line 29, in classFactory
return QuickFinder(iface)
File "C:/Users/random_user/.qgis2/python/plugins\quickfinder\quickfinder_plugin.py", line 60, in init
self._init_finders()
File "C:/Users/random_user/.qgis2/python/plugins\quickfinder\quickfinder_plugin.py", line 131, in _init_finders
self.finders['postgis'] = PostgisFinder(self)
File "C:/Users/random_user/.qgis2/python/plugins\quickfinder\core\postgis_finder.py", line 56, in init
self._searches = self.readSearches()
File "C:/Users/random_user/.qgis2/python/plugins\quickfinder\core\postgis_finder.py", line 151, in readSearches
priority = settings.value('priority', type=int)
TypeError: unable to convert a QVariant of type 0 to a QMetaType of type 2

Python version: 2.7.14 (v2.7.14:84471935ed, Sep 16 2017, 20:25:58) [MSC v.1500 64 bit (AMD64)]
QGIS version: 2.18.25 Las Palmas, cbd7adecf2

Python Path:
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\httplib2-0.8-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\python_dateutil-2.2-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\six-1.10.0-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\requests-2.5.0-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\gsconfig-1.0.6-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\gisdata-0.5.4-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\gsimporter-1.0.0-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\gsconfig-1.0.6-py2.7.egg
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs\gsimporter-1.0.0-py2.7.egg
C:/PROGRA1/QGIS21.18/apps/qgis-ltr/./python/plugins\processing
C:/PROGRA1/QGIS21.18/apps/qgis-ltr/./python
C:/Users/random_user/.qgis2/python
C:/Users/random_user/.qgis2/python/plugins
C:/PROGRA1/QGIS21.18/apps/qgis-ltr/./python/plugins
C:\PROGRA1\QGIS21.18\bin\python27.zip
C:\PROGRA1\QGIS21.18\apps\Python27\DLLs
C:\PROGRA1\QGIS21.18\apps\Python27\lib
C:\PROGRA1\QGIS21.18\apps\Python27\lib\plat-win
C:\PROGRA1\QGIS21.18\apps\Python27\lib\lib-tk
C:\PROGRA1\QGIS21.18\bin
C:\PROGRA1\QGIS21.18\apps\Python27
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\jinja2-2.7.2-py2.7.egg
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\markupsafe-0.23-py2.7-win-amd64.egg
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\win32
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\win32\lib
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\Pythonwin
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\Shapely-1.2.18-py2.7-win-amd64.egg
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\wx-2.8-msw-unicode
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\xlrd-0.9.2-py2.7.egg
C:\PROGRA1\QGIS21.18\apps\Python27\lib\site-packages\xlwt-0.7.5-py2.7.egg
C:/Users/random_user/.qgis2//python
C:\Users\random_user.qgis2\python\plugins\geoserverexplorer\ext-libs

[3nids]

I have no current plan to work on QuickFinder since it is for QGIS 2.18 only and 2.18 is almost EOL.
Please contact me if you do want to get this fixed.

[andrerjesus]

That's OK, thank you for the reply.
Is it a complex fix? If so I can just install the previous QGIS build