how to identify filename and code line from error message?

Question

Newbie question: I'm getting the following error message in AppInsights from an Ionic webapp in production

    Uncaught (in promise): TypeError: Cannot read properties of null (reading 'length')
TypeError: Cannot read properties of null (reading 'length')
    at new u (https://ps.myapp.app/2806.694179fdbc052681.js:1:4851)
    at dt.component.u.ɵfac [as factory] (https://ps.suplai.app/2806.694179fdbc052681.js:1:27122)
    at Ue (https://ps.myapp.app/main.750663c576a071b3.js:1:449610)
    at Nl (https://ps.myapp.app/main.750663c576a071b3.js:1:500147)
    at Mg (https://ps.myapp.app/main.750663c576a071b3.js:1:500218)
    at xu.create (https://ps.myapp.app/main.750663c576a071b3.js:1:500504)
    at tD.createComponent (https://ps.myapp.app/main.750663c576a071b3.js:1:506694)
    at _.activateWith (https://ps.myapp.app/main.750663c576a071b3.js:1:48467)
    at Go.activateRoutes (https://ps.myapp.app/main.750663c576a071b3.js:1:586856)
    at https://ps.myapp.app/main.750663c576a071b3.js:1:585768

how can I identify the filename and code line associated with the message?

score 0 · Answer 1 · answered Aug 18 '22 at 16:24

AppInsights supports uploading source maps for javascript as per https://learn.microsoft.com/en-us/azure/azure-monitor/app/source-map-support

Below the callstack window you will find the Unminify option to tick and start configuring the blob storage needed to store the source maps.

how to identify filename and code line from error message?

1 Answers1