Uncaught ModuleNotFoundError: No module named 'matplotlib'

[areithofer]

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

1. First
2. Second
3. Third

Traceback (most recent call last):
  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 334, in _startPlugin
    plugins[packageName] = package.classFactory(iface)
  File "C:/Users/user9/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\tuflow\__init__.py", line 73, in classFactory
    from .tuflowqgis_menu import tuflowqgis_menu
  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 743, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:/Users/user9/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\tuflow\tuflowqgis_menu.py", line 27, in <module>
    from .tuflowqgis_dialog import *
  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 743, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:/Users/user9/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\tuflow\tuflowqgis_dialog.py", line 32, in <module>
    from .tuflowqgis_library import *
  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 743, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:/Users/user9/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\tuflow\tuflowqgis_library.py", line 40, in <module>
    import matplotlib
  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 743, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
ModuleNotFoundError: No module named 'matplotlib'

tuflow 3.1.2.3, QGIS 3.14.15-Pi on Windows 10

[TUFLOW-Support]

Are you installing QGIS using the standalone installer or OSGEO4W?

[areithofer]

HI, I have OSGeo4W 64 bit Installation.. and am unsing QGIS Pi 3.14.15 Best, Andreas Von: TUFLOW Support Gesendet: Mittwoch, 23. September 2020 01:07 An: TUFLOW-Support/QGIS-TUFLOW-Plugin Cc: zoran2k; Author Betreff: Re: [TUFLOW-Support/QGIS-TUFLOW-Plugin] Uncaught ModuleNotFoundError:No module named 'matplotlib' (#24) Are you installing QGIS using the standalone installer or OSGEO4W? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

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[TUFLOW-Support]

HI Andreas, can you please double check you have installed the python3-matplotlib library through the advanced install