Problem: Few days ago I have alias my office account/email address and after that I can not login to Azure Devops/VSTS from Visual Studio 2017 & 2019. When I was trying to login it is asking my credentials several times but after that I got below error message
“An attempt to communicate with Azure DevOps failed because a token could not be retrieved. Please re-enter your credentials.”
Solution: I just deleted the .IdentityService folder from %LOCALAPPDATA%