Uncaught TypeError: Cannot read property 'firstChild' of undefined

[smdsbz]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.19.1 x64 Electron: 1.6.9 OS: Microsoft Windows 10 Pro Thrown From: tabs package 0.106.2

Stack Trace

Uncaught TypeError: Cannot read property 'firstChild' of undefined

At C:\Users\69406\AppData\Local\atom\app-1.19.1\resources\app\src\text-editor-component.js:2171

TypeError: Cannot read property 'firstChild' of undefined
    at TextEditorComponent.measureLongestLineWidth (~/AppData/Local/atom/app-1.19.1/resources/app/src/text-editor-component.js:2171:112)
    at TextEditorComponent.measureContentDuringUpdateSync (~/AppData/Local/atom/app-1.19.1/resources/app/src/text-editor-component.js:383:16)
    at TextEditorComponent.updateSync (~/AppData/Local/atom/app-1.19.1/resources/app/src/text-editor-component.js:276:18)
    at TextEditorComponent.didShow (~/AppData/Local/atom/app-1.19.1/resources/app/src/text-editor-component.js:1430:18)
    at TextEditorComponent.didFocus (~/AppData/Local/atom/app-1.19.1/resources/app/src/text-editor-component.js:1454:35)
    at HTMLElement.addEventListener (~/AppData/Local/atom/app-1.19.0/resources/app/src/text-editor-element.js:36:67)
    at HTMLElement.PaneElement.activeItemChanged (~/AppData/Local/atom/app-1.19.0/resources/app/src/pane-element.js:158:25)
    at Function.module.exports.Emitter.simpleDispatch (~/AppData/Local/atom/app-1.19.1/resources/app/node_modules/event-kit/lib/emitter.js:25:20)
    at Emitter.module.exports.Emitter.emit (~/AppData/Local/atom/app-1.19.1/resources/app/node_modules/event-kit/lib/emitter.js:141:34)
    at Pane.module.exports.Pane.setActiveItem (~/AppData/Local/atom/app-1.19.1/resources/app/src/pane.js:337:28)
    at Pane.module.exports.Pane.activateItemAtIndex (~/AppData/Local/atom/app-1.19.1/resources/app/src/pane.js:475:25)
    at Pane.module.exports.Pane.activatePreviousItem (~/AppData/Local/atom/app-1.19.1/resources/app/src/pane.js:440:27)
    at Pane.module.exports.Pane.removeItem (~/AppData/Local/atom/app-1.19.1/resources/app/src/pane.js:630:22)
    at Pane.module.exports.Pane.destroyItem (~/AppData/Local/atom/app-1.19.1/resources/app/src/pane.js:706:22)
    at TabBarView.module.exports.TabBarView.onMouseDown (~/AppData/Local/atom/app-1.19.1/resources/app/node_modules/tabs/lib/tab-bar-view.js:709:25)

Commands

     -0:29 tree-view:show (atom-workspace.workspace.scrollbars-visible-always)

Non-Core Packages

activate-power-mode 2.2.0 
advanced-open-file 0.16.6 
atom-clock 0.1.13 
atom-material-syntax 1.0.6 
atom-material-syntax-dark 1.0.0 
atom-material-syntax-light 0.4.6 
atom-material-ui 2.0.4 
atom-terminal 0.8.0 
atom-ternjs 0.18.3 
autocomplete-python 1.10.0 
file-icons 2.1.10 
gcc-make-run 0.2.11 
gpp-compiler 3.0.7 
highlight-line 0.12.0 
highlight-selected 0.13.1 
indent-guide-improved 1.4.13 
language-cpp14 0.6.2 
markdown-pdf 1.5.4 
markdown-scroll-sync 2.1.2 
markdown-themeable-pdf 1.2.0 
minimap 4.29.6 
minimap-bookmarks 0.4.2 
minimap-pigments 0.2.2 
pdf-view 0.59.0 
pigments 0.40.2 
platformio-ide-terminal 2.5.5 
python-indent 1.1.0 
todo-show 1.11.0 

[rsese]

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