Error After Installation on X64 Server with WSUS Role

The App Portal website fails after installation on an X64 Server with WSUS role and generates the following error message:

HTTP 500.19 – Internal Server Error: The requested page cannot be accessed because the related configuration data for the page is invalid

To resolve this error, run the following command:

%windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-[name='xpress']

Note:You are only required to run this command one time, not each time App Portal is launched.

Note:The resolution to this error is documented in the following KB article: