It gives an error when I try to open an existing or new dashboard.

[melekalperatmaca]

I switched from version Devexpress 18.2.7.0 to version 22.1.12.0. My current Xafari version is 22.1.4011.0. My current Xpand version is 22.1.602.0.
When I check the project, I see that there are no old dlls and modules left, they are all new.
It gives an error when I try to open an existing or new dashboard. But the reports section works normally. Both existing reports and new reports are opened.
What could be the problem in the dashboard?

All dlls.

PS: I also did what is written here : https://docs.devexpress.com/AspNet/403748/troubleshooting/installation-and-update-issues/type-x-exists-in-both-assemblies#error-description

Can you help me, please?

[apobekiaris]

the exception points to the following lines

_modelRichEditEx = model.GetNode(ViewItemService.PropertyEditorControlMapName).Nodes().OfType().First();
ControlBindingProperty = _modelRichEditEx.ControlBindingProperty;

so for watever the reason the model was not extended, the most probable cause coud be the xpandWin module not installed

[melekalperatmaca]

thanks for your help solving this problem.