BriskBard, CEF4Delphi, WebView4Delphi, WebUI4Delphi and WebUI4CSharp

Errors on highlighted line in Delphi 10.4.2

Older Delphi versions have fewer control properties.

Open that project and double-click on all the forms and frames to show them inside the Delphi editor.
It will complain about some unknown properties but you will be able to save the form or frame with the right properties for your Delphi version.

After that you shouldn't have any problem running the demo.

Ah, I did not think to open the uBrowserFrame form, I should have thought of that. That fixed it. Thanks