# Known limitations

> Healing Agent:

Healing Agent:

* Does not support Legacy projects. Only Windows and Cross-platform projects are supported.
* Can close intruding pop-ups only if the UI Automation activities use the `VerifyExecution` feature.
* Cannot recover targets based only on Computer Vision.
* Does not support Classic UI Automation activities.
* Cannot detect dialogs or interfering external applications if the automation involves applications exposed via RDP, Citrix, or VMware.
* Cannot detect alerts or prompts if the automation is executed on serverless robots.

## Unsupported activities

UI Automation does not support Classic Activities, and the following activities:

* [Go To URL](https://docs.uipath.com/activities/other/latest/ui-automation/n-go-to-url)
* [Get URL](https://docs.uipath.com/activities/other/latest/ui-automation/n-get-url)
* [Navigate Browser](https://docs.uipath.com/activities/other/latest/ui-automation/n-navigate-browser)
* [Inject Js Script](https://docs.uipath.com/activities/other/latest/ui-automation/n-inject-js-script)
* Browser Dialog Scope
* [Extract Form Data](https://docs.uipath.com/activities/other/latest/ui-automation/n-extract-form-data-generic)
* [Fill Form](https://docs.uipath.com/activities/other/latest/ui-automation/n-fill-form)
* [Close Popup](https://docs.uipath.com/activities/other/latest/ui-automation/n-close-popup)
* [Get Browser Data](https://docs.uipath.com/activities/other/latest/ui-automation/n-get-browser-data)
* [Set Browser Data](https://docs.uipath.com/activities/other/latest/ui-automation/n-set-browser-data)
* [Set Runtime Browser](https://docs.uipath.com/activities/other/latest/ui-automation/n-set-runtime-browser)
* Get Clipboard
* Set Clipboard
* [SAP Call Transaction](https://docs.uipath.com/activities/other/latest/ui-automation/nsap-call-transaction)
* [SAP Read Statusbar](https://docs.uipath.com/activities/other/latest/ui-automation/nsap-read-statusbar)
* [SAP Select Menu Item](https://docs.uipath.com/activities/other/latest/ui-automation/nsap-select-menu-item)
* [SAP Login](https://docs.uipath.com/activities/other/latest/ui-automation/nsap-login)
* [SAP Logon](https://docs.uipath.com/activities/other/latest/ui-automation/nsap-logon)
* UI Task