Unable to retrieve WS-Federation metadata from the following address: {0}. You can perform the following to troubleshoot ...

Unable to retrieve WS-Federation metadata from the following address: {0}.
You can perform the following to troubleshoot the issue:
a) Make sure that AcsManagementPortalUrl is set correctly.
b) Navigate to {0} in the web browser to see the detailed error message.
c) Navigate to {1}/v2/mgmt/web/Credential and verify that there are at least one token signing certificate registered for the SERVICE NAMESPACE.
   You can use "TfsAzureCert CreateServiceCert" command to generate a token signing certificate.

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