QtChart.dll miss

[Duy Khang]

I have a project move from another pc (old version of Qt) to my new pc(new version of Qt), then I load project and run it, it run well but don't show any widget. And I went to myproject.exe and run as administrator and it display error

But, my QtCharts.dll is still exist in bin. How to solve it ?

old version of QtCreator i used is QtCreator 4.14.0 and new version is 4.15.2

[jsulm]

@Duy-Khang I don't think the problem is QtChart.dll. To run a Qt app from Explorer requires a deployment.
So, you should investigate the actual problem.
For example run through debugger.
Check whether there are any errors/warnings printed in Application output in QtCreator when running your app.

[Duy Khang]

here is it.

It does not show any widget, but it still run in task manager

[jsulm]

@Duy-Khang You should check the wrong connect().
And the "transition" property.