selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Could not sign with default certificate. Original error Command ‘‘C:\Program Files\Java\jdk1.8.0_131\bin\java.exe’ -jar ‘C:\Program Files\Appium\resources\app\node_modules\appium\node_modules\appium-adb\jars\sign.jar’ ‘C:\Program Files\Appium\resources\app\node_modules\appium\node_modules\appium-uiautomator2-server\apks\appium-uiautomator2-server-debug-androidTest.apk’ --override’ exited with code 1