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To Whom it May Concern:</div>
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My name is Brad Jones. I'm a long-time user of QGIS, but first time poster to this list serv. Great product!</div>
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After several weeks away from having to utilize QGIS for mapping purposes, I went into the application today to produce some maps that are needed for a project due at the end of this week. The version that I was using was QGIS 3.40.4 (Bratislava). When I
double-clicked on the icon, the first thing I saw was that a new mmqgis version was available and it asked me if I wanted to download it. I said yes, but when it finished downloading, it gave me an error message stating "Couldn't load plugin 'mmqgis' due
to an error when calling its classFactory() method." Per some instructions I found on YouTube, I tried uninstalling and reinstalling the plugin, but to no avail. I then thought that perhaps there is a more recent LTR that I could download that might solve
the problem, and sure enough, there was, QGIS 3.40.15. So, I downloaded it, but I still got the same error message. I then tried downloading the most recent standard version, QGIS 3.44.7. Same thing. I have no idea what to do at this point, so I thought
I would reach out to this listserv for help. The stack trace I receive along with this error is as follows:</div>
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<span style="font-weight: 600;">Couldn't load plugin 'mmqgis' due to an error when calling its classFactory() method</span></div>
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<span style="font-weight: 600;">ImportError: PyQt6 classes cannot be imported in a QGIS build based on Qt5. Use PyQt5.QtCore or preferably the version independent qgis.PyQt.QtCore import instead (where available).</span></div>
<pre style="margin: 12px 0px;" class="elementToProof"><div style="text-indent: 0px; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">Traceback (most recent call last):<br> File "C:\PROGRA~1/QGIS34~1.7/apps/qgis/./python\qgis\utils.py", line 478, in _startPlugin<br> plugins[packageName] = package.classFactory(iface)<br> ^^^^^^^^^^^^^^^^^^^^^^^^^^^<br> File "C:\Users/lifew/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\mmqgis\__init__.py", line 17, in classFactory<br> from .mmqgis_menu import mmqgis_menu<br> File "C:\PROGRA~1/QGIS34~1.7/apps/qgis/./python\qgis\utils.py", line 1100, in _import<br> mod = _builtin_import(name, globals, locals, fromlist, level)<br> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br> File "C:\Users/lifew/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\mmqgis\mmqgis_menu.py", line 15, in <br> from PyQt6.QtCore import *<br> File "C:\PROGRA~1/QGIS34~1.7/apps/qgis/./python\qgis\utils.py", line 1068, in _import<br> raise ImportError(msg)<br>ImportError: PyQt6 classes cannot be imported in a QGIS build based on Qt5.<br>Use PyQt5.QtCore or preferably the version independent qgis.PyQt.QtCore import instead (where available).</div></pre>
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<span style="font-weight: 600;">Python version:</span> 3.12.12 (main, Oct 14 2025, 23:38:06) [MSC v.1944 64 bit (AMD64)]
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<span style="font-weight: 600;">QGIS version:</span> 3.44.7-Solothurn Solothurn, ea262bc5ed8
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<span style="font-weight: 600;">Python Path:</span></div>
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C:/PROGRA~1/QGIS34~1.7/apps/qgis/./python</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:/Users/lifew/AppData/Roaming/QGIS/QGIS3\profiles\default/python</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:/Users/lifew/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:/PROGRA~1/QGIS34~1.7/apps/qgis/./python/plugins</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\grass\grass84\etc\python</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\Users\lifew\Documents</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\Program Files\QGIS 3.44.7\bin\python312.zip</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\DLLs</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\Lib</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\Program Files\QGIS 3.44.7\bin</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\Lib\site-packages</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\Lib\site-packages\win32</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\Lib\site-packages\win32\lib</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px;">
C:\PROGRA~1\QGIS34~1.7\apps\Python312\Lib\site-packages\Pythonwin</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); text-indent: 0px; white-space: pre-wrap; margin: 0px 0px 12px;">
C:/Users/lifew/AppData/Roaming/QGIS/QGIS3\profiles\default/python</li></ul>
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Can someone please help me. I would greatly appreciate it!</div>
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Sincerely,</div>
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Brad Jones</div>
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