Uncaught TypeError: Cannot read property 'length' of undefined

[Chailotl]

1. Open Atom
2. #Error

Atom: 1.22.1 x64 Electron: 1.6.15 OS: Microsoft Windows 10 Pro Insider Preview Thrown From: elastic-tabstops package 1.2.9

Stack Trace

Uncaught TypeError: Cannot read property 'length' of undefined

At C:\Users\hp\.atom\packages\elastic-tabstops-beta\lib\ElasticTabstopsBuilder.ts:38

TypeError: Cannot read property 'length' of undefined
    at ElasticTabstopsBuilder.line (/packages/elastic-tabstops-beta/lib/ElasticTabstopsBuilder.ts:38:27)
    at createTabstops (/packages/elastic-tabstops-beta/lib/elastic-tabstops.js:221:12)
    at update (/packages/elastic-tabstops-beta/lib/elastic-tabstops.js:182:20)
    at TextEditorComponent.before (/packages/elastic-tabstops-beta/lib/elastic-tabstops.js:169:4)
    at TextEditorComponent.updateSyncAfterMeasuringContent (/packages/elastic-tabstops-beta/lib/elastic-tabstops.js:419:25)
    at scheduler.updateDocument (~/AppData/Local/atom/app-1.22.1/resources/app/src/text-editor-component.js:280:22)
    at ViewRegistry.module.exports.ViewRegistry.performDocumentUpdate (~/AppData/Local/atom/app-1.22.1/resources/app/src/view-registry.js:195:15)
    at ~/AppData/Local/atom/app-1.22.1/resources/app/src/view-registry.js:3:65

Commands

     -1:12.8.0 core:backspace (input.hidden-input)
     -1:12.5.0 snippets:next-tab-stop (input.hidden-input)
     -1:12.5.0 snippets:expand (input.hidden-input)
     -1:12.4.0 editor:indent (input.hidden-input)
     -1:05.3.0 snippets:next-tab-stop (input.hidden-input)
     -1:05.3.0 snippets:expand (input.hidden-input)
     -1:05.3.0 editor:indent (input.hidden-input)
     -1:03.8.0 core:save (input.hidden-input)
     -0:59.7.0 core:move-up (input.hidden-input)
     -0:58.6.0 core:backspace (input.hidden-input)
     -0:55.4.0 core:save (input.hidden-input)

Non-Core Packages

elastic-tabstops 1.2.9