selenium.WebDriverException: org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Could not proxy command to remote server. Original error: Error: socket hang up

I am executing Android test cases on windows using appium.
My browser is launching but failing to execute any test method.
and giving the error.

"org.openqa.selenium.WebDriverException: org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Could not proxy command to remote server. Original error: Error: socket hang up"