DeadUrl: version 0.6.7: SRC_URI: 404 Client Error: The specified blob does not exist. for url: https://api.nuget.org/v3-flatcontainer/microsoft.fileformats/1.0.431901/microsoft.fileformats.1.0.431901.nupkg
  DeadUrl: version 0.6.7: SRC_URI: 404 Client Error: The specified blob does not exist. for url: https://api.nuget.org/v3-flatcontainer/microsoft.symbolstore/1.0.431901/microsoft.symbolstore.1.0.431901.nupkg