Adminlte: Uncaught TypeError: Cannot read property 'getContext' of null at HTMLDocument

Created on 20 Nov 2019 · 9Comments · Source: ColorlibHQ/AdminLTE

Describe the bug
I tried to integrate AdminLTE V3.0 into my Application.

Expected behavior
When I launced the Application, I expected the Dashboard V1 to display as its in AdminLTE v1 dashboard v1, but I got this error:

jquery.min.js:2 Uncaught TypeError: Cannot read property 'getContext' of null at HTMLDocument.<anonymous> (dashboard.js:113) at e (jquery.min.js:2) at t (jquery.min.js:2)

See the diagram:
Screenshots
adminlte_jquery2

Then this made the dashboard not to display the graph appropriately:

adminlte_template

Environment :

AdminLTE Version: [v3.0.0]
Operating System: [Windows
Browser (Version): [Chrome]

Additional context
How do I resolve this please?

plugins bug 3.x

Source

noblemfd

All 9 comments

Do you get other errors/warings too or only the warning and the one error?
Does this error comes also on the online demo?
Did you changed the content in Dashboard 1?

REJack on 20 Nov 2019

@REJack - 1. No, I didn't get other errors/warnings

No, this error is not on the online demo.
3.I didn't change the content in Dashboard 1

noblemfd on 20 Nov 2019

I've tested a bit the dashboard.js and the the error comes when the canvas (<canvas id="revenue-chart-canvas">) is not available, but the dashboard js files are only for demo purpose and not required.

REJack on 20 Nov 2019

👍1

OK. Thanks

noblemfd on 20 Nov 2019

Is this issue still open?

REJack on 25 Nov 2019

Yes, its still open? How do I close it since its resolved?

noblemfd on 25 Nov 2019

I don't understand, is your problem solved?

REJack on 25 Nov 2019

Yes, the problem is solved. Thanks

noblemfd on 25 Nov 2019