WindowsDriver NULL: starting WinAppDriver and MSIX App from Code

Product Forums Katalon Studio
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1

Hi!

When i start WinAppDriver and the App (installed MSIX package) manually and start the inspector: everything works out correct. Also running tests did work

When I start WinnAppDriver and App from Code:

  • Driver started and listening
  • App started
  • But i cant get the driver-Session, brause it is saied to be NULL.

ANY IDEAS? Could this be because of the app, being installed from an MSIX package?!?

String startWinAppDriver = GlobalVariable.WinAppDriver
ProcessBuilder builder = new ProcessBuilder(startWinAppDriver).inheritIO()
Process startWinAppDriverProcess = builder.start()


String aumid = "Microsoft.WindowsCalculator_8wekyb3d8bbwe!App"
String appArguments = "shell:appsFolder\\$aumid"
String[] cmd = ["explorer.exe", appArguments]
Process process = new ProcessBuilder(cmd).start()


WindowsDriver driver = WindowsDriverFactory.getWindowsDriver()
driver.manage().window().maximize()


Test Cases/_Sandbox/StartApp/Calc FAILED.
Reason:
java.lang.NullPointerException: Cannot invoke "com.kms.katalon.core.windows.driver.WindowsSession.getRunningDriver()" 
because "com.kms.katalon.core.windows.driver.WindowsDriverFactory.windowsSession" is null
1 Like
2

Hi,

Thank you for letting us know your problems. I think the error relates to Windows drivers and the required library. Can you please take a look at this setup Set up WinAppDriver in Katalon Studio | Katalon Docs to make sure WinAppDriver is good? Also, try WindowsDriverFactory.createWindowsSession() to create the session so that you will not receive NULL

3

Hi and thank you for your quick answer.
WinAppDriver seems to be running correctly.
Iā€™m afraid, the function .createWindowsSession() is not available ā†’ WindowsDriverFactory (Katalon Studio API Specification).
Iā€™m working with the free version at the moment. Would PRO make a difference here?