[Qgis-user] error loading SACP into Mac QGIS 3.2.3

[William G. Guthe]

Hi,

I have installed QGIS 3.2.3 on an old Mac Pro running El Capitan.  I installed Python 3.6 from python.org, the GDAL and then QGIS itself.  I used pip3 to install matplotlib, scipy, and numpy.  I’ve also prepended the paths to 3.6/bin and GDAL 2.2.  When I try to load the Semi-Automatic Classification Plugin, I get an error about fontlist-v300.json not being available (which is true, it isn’t there).

I just met with a student running High Sierra, who gets a similar error about fontlist-v300.json being absent.  She has followed the directions for installing 3.2.3, set up the paths correctly, and installed the other packages.

I’m attaching the entire error message, in case there is more in that.

Thanks for any help on this.

Bill Guthe
Research Computing/OIT
Princeton University
Princeton, NJ

Error message:

Couldn't load plugin 'SemiAutomaticClassificationPlugin' due to an error when calling its classFactory() method
OSError: [Errno 62] Too many levels of symbolic links: 'Applications/DivX Player.app/Contents/Frameworks/DPXLibrary.framework/Versions/Current/A'
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 1353, in
    fontManager = json_load(_fmcache)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 888, in json_load
    with open(filename, 'r') as fh:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/wguthe/.matplotlib/fontlist-v300.json'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 337, in startPlugin
    plugins[packageName] = package.classFactory(iface)
  File "/Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/__init__.py", line 65, in classFactory
    from .semiautomaticclassificationplugin import SemiAutomaticClassificationPlugin
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/semiautomaticclassificationplugin.py", line 74, in
    from .ui.semiautomaticclassificationplugindialog import SemiAutomaticClassificationPluginDialog
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/ui/semiautomaticclassificationplugindialog.py", line 39, in
    from .ui_semiautomaticclassificationplugin_scatter_plot import Ui_ScatterPlot
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/ui/ui_semiautomaticclassificationplugin_scatter_plot.py", line 453, in
    from .scatterwidget2 import ScatterWidget2
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/ui/scatterwidget2.py", line 44, in
    from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigCanvas
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/backends/__init__.py", line 9, in
    from matplotlib.backend_bases import _Backend
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/backend_bases.py", line 46, in
    from matplotlib import (
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/textpath.py", line 8, in
    from matplotlib import cbook, dviread, font_manager, rcParams
  File "/Applications/QGIS3.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 674, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 1363, in
    _rebuild()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 1344, in _rebuild
    fontManager = FontManager()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 978, in __init__
    ttffiles = findSystemFonts(paths) + findSystemFonts()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 270, in findSystemFonts
    fontfiles.update(OSXInstalledFonts(fontext=fontext))
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 218, in OSXInstalledFonts
    for directory in directories
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 220, in
    for path in list_fonts(directory, ext)]
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 157, in list_fonts
    for path in filter(Path.is_file, Path(directory).glob("**/*.*"))
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/matplotlib/font_manager.py", line 156, in
    return [str(path)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 1098, in glob
    for p in selector.select_from(self):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 559, in _select_from
    for starting_point in self._iterate_directories(parent_path, is_dir, scandir):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 549, in _iterate_directories
    for p in self._iterate_directories(path, is_dir, scandir):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 549, in _iterate_directories
    for p in self._iterate_directories(path, is_dir, scandir):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 549, in _iterate_directories
    for p in self._iterate_directories(path, is_dir, scandir):
  [Previous line repeated 3 more times]
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pathlib.py", line 547, in _iterate_directories
    if entry.is_dir() and not entry.is_symlink():
OSError: [Errno 62] Too many levels of symbolic links: 'Applications/DivX Player.app/Contents/Frameworks/DPXLibrary.framework/Versions/Current/A'

Python version: 3.6.6 (v3.6.6:4cf1f54eb7, Jun 26 2018, 19:50:54) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)]
QGIS version: 3.2.3-Bonn Bonn, exported
Python Path:

  *   /Applications/QGIS3.app/Contents/MacOS/../Resources/python
  *   /Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python
  *   /Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins
  *   /Applications/QGIS3.app/Contents/MacOS/../Resources/python/plugins
  *   /Library/Frameworks/Python.framework/Versions/3.6/lib/python36.zip
  *   /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6
  *   /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/lib-dynload
  *   /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages
  *   /Users/wguthe/Library/Application Support/QGIS/QGIS3/profiles/default/python



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