Cannot create/reset deployment credentials on an Azure Web App?

Introduction:-

Today i will explain you "Cannot create/reset deployment credentials on an Azure Web App?"How can resolve the issue.

Having typed a (valid) user name and (valid) password, I pressed the tick to confirm creation/reset. It led me to error message like this (Failed to Set Credentials with error: "Please, try again. If the problem persists, contact support."

Solution (workaround)

Set Username and password and save it,After saving below output get. 

IF you follow all step than your problem will resolve.

-------------------------Thank you----------------------------