AppiumStartException: Fail to start Appium server in 30 seconds

Shruti Saxena said:

I have executed the test case for web testing and the same using for mobile testing.With android mobile testing after starting Appium server its not moving forward. below is the screen shot

I am not able to attach screen shot, but i got message in window as " Appium server started on port 51,445"

however nothing moving forward after this