Appium instructor struck,shows blank screen with message "Gathering initial app source..."

[nelson]

I am getting below message on starting a new session in Inspector
Below are the parameters set

{
“platformName”: “Android”,
“deviceName”: “Samsung Galaxy”,
“appPackage”: "com.my app,
“appActivity”: “com.my app. MainActivity”,
“noReset”: “true”,
“fullReset”: “false”,
“autoWebview”: “true”,
“platformVersion”: “7.0”
}