<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear experts,<div class=""><br class=""></div><div class="">I tried to install PySurfer according guidelines on an OS X. However, when trying to launch a simple test with <font face="Menlo" class=""><span style="font-size: 11px;" class="">plot_basics.py, I got the following error message:</span></font></div><div class=""><font face="Menlo" class=""><span style="font-size: 11px;" class=""><br class=""></span></font></div><div class=""><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Traceback (most recent call last):</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "plot_basics.py", line 8, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from surfer import Brain</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/surfer/__init__.py", line 1, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from .viz import Brain, TimeViewer # noqa</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/surfer/viz.py", line 13, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from mayavi import mlab</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/mayavi/mlab.py", line 15, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from mayavi.core.common import process_ui_events</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/mayavi/core/common.py", line 21, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from pyface import api as pyface</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/pyface/api.py", line 17, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from .about_dialog import AboutDialog</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/pyface/about_dialog.py", line 19, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> from .toolkit import toolkit_object</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/pyface/toolkit.py", line 27, in <module></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> toolkit = toolkit_object = find_toolkit('pyface.toolkits')</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/pyface/base_toolkit.py", line 263, in find_toolkit</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> return import_toolkit(ETSConfig.toolkit, entry_point)</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> File "/Users/mattvan83/anaconda/envs/PySurf/lib/python3.7/site-packages/pyface/base_toolkit.py", line 227, in import_toolkit</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> raise RuntimeError(msg)</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">RuntimeError: No pyface.toolkits plugin could be loaded for qt4</span></div></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">Could you help me about this error, I couldn’t find anything resolved on the web?</span></div><div style="margin: 0px; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""><br class=""></span></div><div style="margin: 0px; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">Best,</span></div><div style="margin: 0px; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">Matthieu</span></div></body></html>