Error when trying to generate html reports.

[tomrosier]

I am trying to generate the html reports for my es6 code and receive the following error.

Cannot read property 'start' of undefined TypeError: Cannot read property 'start' of undefined at /Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:50:28 at Array.forEach (native) at annotateStatements (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:46:33) at Object.annotateSourceCode (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-reports/lib/html/annotator.js:193:9) at HtmlReport.onDetail (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-reports/lib/html/index.js:217:39) at Visitor.(anonymous function) [as onDetail] (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:34:30) at ReportNode.Node.visit (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:123:17) at /Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:116:23 at Array.forEach (native) at visitChildren (/Users/rosiet01/Documents/Subtitling/XMLParser/node_modules/nyc/node_modules/istanbul-lib-report/lib/tree.js:115:32)

[GeeWee]

+1 - I get this when transpiling typescript and piping it to istanbul

[moribellamy]

same issue. you can reproduce it with my open source app at this commit: https://github.com/moribellamy/graytabby/tree/bfd1a7bf5426e6169d95cbeed4266a5ed26bd462

npm run test:coverage gives good enough lcov data, but the HTML report has the error @tomrosier gives above