SharePoint Error: Some or all identity references could not be translated
I create numerous SharePoint sites with the same port number in my virtual machine frequently during envisioning / POC phrase, and I face an error when I try to re-create the same Web app in SharePoint today: Some or all identity references could not be translated. The result from google is not so helpful but I finally figure out that the problem is caused by an old app pool in IIS after reading this post - I need to clean up the content db, virtual directory and app pool properly next time.