Unable to connect to Root Desktop session

I’m trying to connect to Desktop Session using this sample of code:

val appCapabilities = DesiredCapabilities()
appCapabilities.setCapability("app", "Root");
val ses = WindowsDriver(URL("http://127.0.0.1:4723"), appCapabilities)

But, as a result I have such log:

Exception in thread "main" org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Response code 400. Message: Bad capabilities. Specify either app or appTopLevelWindow to create a session 
Driver info: io.appium.java_client.windows.WindowsDriver
Command: [null, newSession {capabilities=[{appium:app=Root, appium:automationName=Windows, appium:deviceName=WindowsPC, platformName=WINDOWS}], desiredCapabilities=Capabilities {app: Root, appium:automationName: Windows, deviceName: WindowsPC, platformName: WINDOWS}}]
Capabilities {app: Root, appium:automationName: Windows, deviceName: WindowsPC, platformName: WINDOWS}
	at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:136)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at io.appium.java_client.remote.AppiumProtocolHandshake.createSession(AppiumProtocolHandshake.java:133)
	at io.appium.java_client.remote.AppiumProtocolHandshake.createSession(AppiumProtocolHandshake.java:102)
	at io.appium.java_client.remote.AppiumCommandExecutor.createSession(AppiumCommandExecutor.java:182)
	at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:250)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:543)
	at io.appium.java_client.AppiumDriver.startSession(AppiumDriver.java:274)
	at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:157)
	at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:89)
	at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:101)
	at io.appium.java_client.windows.WindowsDriver.<init>(WindowsDriver.java:50)
	at MainKt.launchOsDriver(Main.kt:46)
	at MainKt.main(Main.kt:18)

[Shakevg]

vrumvrumich Try https://github.com/microsoft/WinAppDriver/issues/1866#issue-1584702726

[Shakevg]

Why do you need windowHandles for the Desktop session? I suppose it is not supported for Desktop session. You should first create an app session and call windowHandles for it.