UiPath Computer vision package problem

[prozze (Alessandro)]

Hi Guys,

My robot was working perfectly untill yesterday. Today I opened UiPath and I noticed this red line in the project output box:

‘The invocation of the constructor on type ‘UiPath.CV.Activities.CVTypeInto’ that matches the specified binding constraints threw an exception.’ Line number ‘534’ and line position ‘43’. Row: 534, Column: 43

When I start the process I get this:

In the log file I can read that:

11:22:13.3926 => [ERROR] [UiPath.Studio.exe] [1] System.Xaml.XamlObjectWriterException: The invocation of the constructor on type ‘UiPath.CV.Activities.CVTypeInto’ that matches the specified binding constraints threw an exception. —> System.MissingMethodException: Method not found: ‘Void UiPath.Core.Activities.KeyboardActivity.set_ClickBeforeTyping(Boolean)’

So the problem is the Uipath.AI.computervision package; I uninstalled it, reinstalled, accepted license, but still the same error. I tried also to install older versions.
I made a clean reinstallation of UiPath to the newest version.

If I delete the package I can enter the process but i see that the Uipath computer vision activity boxes are missing.

.Net Framework is 4.8

I have no more ideas on how to proceed, I need computer vision activities

Thank you for your help.

[prozze (Alessandro)]

Hi again!

I think I found the issue, the problem isn’t with the AI Computer vision package, but with the UiPath automation package.

The updated version is a prerelease, i uninstalled it and installed the previous one, now everything is back working!