title: download from blob when given its uri fails in c#
body: <p>I'm trying to download a file from Azure blob and save it locally, but it seems to fail.
  Here's the relevant code:</p>
  
  <pre><code>    var blobClientCode = client.CreateCloudBlobClient();
      string codeUri = "https://???.blob.core.windows.net/...../mycode.exe";
      using (var codeContent = File.OpenWrite("C:\\code.exe")) {
          blobClientCode.GetBlockBlobReference(codeUri).DownloadToStream(codeContent);
      }
  </code></pre>
  
  <p>I get an error in which the container doens't exist. What am I doing wrong?</p>