Uncaught TypeError: Cannot read property 'toString' of undefined
At /usr/share/atom/resources/app/node_modules/markdown-preview/lib/markdown-preview-view.js:171
TypeError: Cannot read property 'toString' of undefined
at MarkdownPreviewView.module.exports.MarkdownPreviewView.editorForId (/usr/share/atom/resources/app/node_modules/markdown-preview/lib/markdown-preview-view.js:171:87)
at Object.getItemID (/packages/pinned-tabs/lib/pinned-tabs.coffee:214:42)
at /packages/pinned-tabs/lib/pinned-tabs.coffee:114:75
at Array.filter (native)
at /packages/pinned-tabs/lib/pinned-tabs.coffee:114:51
at Function.module.exports.Emitter.simpleDispatch (/usr/share/atom/resources/app/node_modules/event-kit/lib/emitter.js:25:20)
at Emitter.module.exports.Emitter.emit (/usr/share/atom/resources/app/node_modules/event-kit/lib/emitter.js:141:34)
at PaneContainer.willDestroyPaneItem (/usr/share/atom/resources/app/src/pane-container.js:274:24)
at Pane.module.exports.Pane.destroyItem (/usr/share/atom/resources/app/src/pane.js:699:22)
at TabBarView.module.exports.TabBarView.closeTab (/usr/share/atom/resources/app/node_modules/tabs/lib/tab-bar-view.js:341:32)
at HTMLDivElement.TabView.didClickCloseIcon (/usr/share/atom/resources/app/node_modules/tabs/lib/tab-bar-view.js:229:25)
Uncaught TypeError: Cannot read property 'toString' of undefined
At /usr/share/atom/resources/app/node_modules/markdown-preview/lib/markdown-preview-view.js:171
TypeError: Cannot read property 'toString' of undefined at MarkdownPreviewView.module.exports.MarkdownPreviewView.editorForId (/usr/share/atom/resources/app/node_modules/markdown-preview/lib/markdown-preview-view.js:171:87) at Object.getItemID (/packages/pinned-tabs/lib/pinned-tabs.coffee:214:42) at /packages/pinned-tabs/lib/pinned-tabs.coffee:114:75 at Array.filter (native) at /packages/pinned-tabs/lib/pinned-tabs.coffee:114:51 at Function.module.exports.Emitter.simpleDispatch (/usr/share/atom/resources/app/node_modules/event-kit/lib/emitter.js:25:20) at Emitter.module.exports.Emitter.emit (/usr/share/atom/resources/app/node_modules/event-kit/lib/emitter.js:141:34) at PaneContainer.willDestroyPaneItem (/usr/share/atom/resources/app/src/pane-container.js:274:24) at Pane.module.exports.Pane.destroyItem (/usr/share/atom/resources/app/src/pane.js:699:22) at TabBarView.module.exports.TabBarView.closeTab (/usr/share/atom/resources/app/node_modules/tabs/lib/tab-bar-view.js:341:32) at HTMLDivElement.TabView.didClickCloseIcon (/usr/share/atom/resources/app/node_modules/tabs/lib/tab-bar-view.js:229:25)