Getting Azure Storage (blob) to work with Xamarin.Forms

I recently started working on a Xamarin.Forms project, where I need to use Azure Blob Storage to host pictures taken from a mobile device’s camera. Along the way, I came across several great tutorials illustrating how to take advantage of blob storage, but they were all missing one key part: I couldn’t use this namespace:



That storage namespace kept coming up missing. Bizarre, considering I knew I had the NuGet package installed. After 2 days of searching, I finally resolved it. Hopefully this help you. Let me know if you have an alternative means to get this to work.

Changing the profile & retargeting the PCL

After installing these NuGet packages, you actually need to change the profile on your Xamarin project. You can do this by going to the shared project -> Options -> General – > C#


  • Change the Current Profile to  PCL 4.5 – Profile111
    • (I have no idea of what this does.)
  • You need to retarget your NuGet packages for this new profile now.
  • Right click on Packages within the shared project, and you’ll have 5 options here.
    • Retarget will be available. Click that. (Not shown here, as I’ve already retargeted)


  • Rebuild your project

How I figured this out

I stumbled across this Xamarin forum post, where someone had the exact same issue. One user pointed us towards a bug report, where PCL references were not added automatically via NuGet package installation. They recommended retargeting, and it worked! Now I can include the using Microsoft.WindowsAzure.Storage.Blob;  namespace.

Additional Resources

  • Azure Mobile Services Companion app
    • This sample adds support for images to the Mobile Apps todo list quickstart.
  • What is a shared access signature? -pt 1
    • Overview & best practices
  • Use blob storage for Xamarin (preview)
    • I can’t seem to do this on OSX, so I generated the SAS token  on Windows.
    • You then get two keys – primary and secondary. Specify either. You have two so you can give one out to someone (such as giving the secondary key to a 3rd-party monitoring company) and revoke it by changing the key, without impacting you (assuming you’re using the primary key for yourself).


One thought on “Getting Azure Storage (blob) to work with Xamarin.Forms

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.