Causes an error when source-preview pane is opened

[vincentcn]

Causes an error when source-preview pane is opened

[clutterstack]

Same error message for me. Just upgraded to v2.1.1.

On the pane with the markdown preview tab in it, I also had a tab containing an unsaved, untitled text file. Switching to this unsaved file from any other tab triggered the error.

Saving the text file (no extension needed) fixed the behaviour for me.

Atom Version: 1.4.3
System: Mac OS X 10.10.5
Thrown From: markdown-scroll-sync package, v2.1.1

Stack Trace

Uncaught TypeError: Cannot read property 'split' of undefined

At /Users/chris/.atom/packages/markdown-scroll-sync/lib/main.coffee:29

TypeError: Cannot read property 'split' of undefined
    at isMarkdown (/Users/chris/.atom/packages/markdown-scroll-sync/lib/main.coffee:29:46)
    at /Users/chris/.atom/packages/markdown-scroll-sync/lib/main.coffee:33:10
    at Function.module.exports.Emitter.simpleDispatch (/Applications/Atom.app/Contents/Resources/app.asar/node_modules/event-kit/lib/emitter.js:25:14)
    at Emitter.module.exports.Emitter.emit (/Applications/Atom.app/Contents/Resources/app.asar/node_modules/event-kit/lib/emitter.js:125:28)
    at /Applications/Atom.app/Contents/Resources/app.asar/src/pane-container.js:333:27
    at Function.module.exports.Emitter.simpleDispatch (/Applications/Atom.app/Contents/Resources/app.asar/node_modules/event-kit/lib/emitter.js:25:14)
    at Emitter.module.exports.Emitter.emit (/Applications/Atom.app/Contents/Resources/app.asar/node_modules/event-kit/lib/emitter.js:125:28)
    at Pane.module.exports.Pane.setActiveItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:248:22)
    at Pane.module.exports.Pane.activateItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:316:21)
    at Pane.module.exports.Pane.activateItemAtIndex (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:310:19)
    at Pane.module.exports.Pane.activatePreviousItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:277:21)
    at Pane.module.exports.Pane.removeItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:391:16)
    at Pane.module.exports.Pane.destroyItem (/Applications/Atom.app/Contents/Resources/app.asar/src/pane.js:453:16)
    at atom-tabs.TabBarView.onClick (/Applications/Atom.app/Contents/Resources/app.asar/node_modules/tabs/lib/tab-bar-view.js:695:17)

Commands

     -0:40.2.0 core:save (atom-text-editor.editor.is-focused)
     -0:07.3.0 markdown-preview:toggle (atom-text-editor.editor.is-focused)

Config

{
  "core": {
    "openEmptyEditorOnStart": false,
    "projectHome": "/Users/chris/path/to/a/project" 
  }
}

Installed Packages

# User
clock, v1.5.0
markdown-scroll-sync, v2.1.1
terminal-plus, v0.14.5

# Dev
No dev packages

[mark-hahn]

Fixed in 2.1.2

Thanks.,

[danielbayley]

Nice one 👍