attributeError exception?

[soren]

In pymakr I quite often get this exception now. Wondering what it means:

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2017-03-23, 12:26:25

<type 'exceptions.AttributeError'>:
'NoneType' object has no attribute 'getEditor'

File "/Applications/Pymakr.app/Contents/Resources/src/Plugins/ViewManagerPlugins/Tabview/Tabview.py", line 295, in __showContextMenu
self.contextMenuEditor = self.widget(index).getEditor()

---

Version Numbers:
Python 2.7.12
Qt 4.8.7
PyQt 4.11.4
sip 4.18.1
QScintilla 2.9.3
WebKit 534.34
Pymakr 1.0.0.b8

Platform: darwin
2.7.12 (default, Jun 29 2016, 12:52:38)
[GCC 4.2.1 Compatible Apple LLVM 7.0.2 (clang-700.1.81)]

Plugins Version Numbers:
PluginAbout 6.1.0
PluginAboutPymakr 1.0.0
PluginCodeStyleChecker 6.1.0
PluginCompletionJedi 1.0.3
PluginEricapi 6.1.0
PluginEricdoc 6.1.0
PluginFeedback 1.0.0
PluginFullUI 1.0.0
PluginLiteUI 1.0.0
PluginPycomDevice 1.0.0
PluginPycomStyle 1.0.0
PluginPycomSync 1.0.0
PluginREPL 1.0.0
PluginSyntaxChecker 6.1.0
PluginTabnanny 6.1.0
PluginUpdate 1.0.0
PluginVcsMercurial 6.1.0
PluginVcsPySvn 6.1.0
PluginVcsSubversion 6.1.0
PluginVmListspace 6.1.0
PluginVmTabview 6.1.0
PluginWizardE5MessageBox 6.1.0
PluginWizardPyRegExp 6.1.0
PluginWizardQColorDialog 6.1.0
PluginWizardQFileDialog 6.1.0
PluginWizardQFontDialog 6.1.0
PluginWizardQInputDialog 6.1.0
PluginWizardQMessageBox 6.1.0
PluginWizardQRegExp 6.1.0
PluginWizardQRegularExpression 6.1.0