grpc/src/csharp/Grpc.Examples/packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Google.Protobuf" version="3.0.0" targetFramework="net45" />
  <package id="NUnit" version="3.2.0" targetFramework="net45" />
  <package id="System.Interactive.Async" version="3.1.1" targetFramework="net45" />
</packages>