Missing Microsoft.Threading.Tasks with azure SDK

Question

I'm attempting to use the Microsoft Azure SDK for .net version 0.9.5-preview. I am basically attempting to just get the sample for listing locations and services from the Readme working. However I'm running into an exception

An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Microsoft.WindowsAzure.Management.dll

Additional information: Could not load file or assembly 'Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

Information about this assembly is pretty sparse. I've found some references to it in relation to PCLs and windows phone but this is just a console application using the full 4.5.1(although I have also tried 4.5).

I've found a copy of the dll in a google repository and throwing that in the bin directory does make the application work, however that seems like a spectacular hack. I'd rather see a better solution. Any ideas?

The packages.config contents are

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Microsoft.WindowsAzure.Common" version="0.9.8-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management" version="0.9.5-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Compute" version="0.9.9-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Libraries" version="0.9.6-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Monitoring" version="0.9.2-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Scheduler" version="0.9.8-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.ServiceBus" version="0.9.3-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Sql" version="0.9.4-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.Storage" version="0.9.3-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.VirtualNetworks" version="0.9.3-preview" targetFramework="net45" />
  <package id="Microsoft.WindowsAzure.Management.WebSites" version="0.9.3-preview" targetFramework="net45" />
</packages>

Answer 1

Microsoft.Threading.Tasks assembly you are missing is in Microsoft.Bcl.Async NuGet package. Not sure why but your packages.config file is missing a bunch of dependent assemblies. You may want to un-install and install again your NuGet packages to bring back the dependencies.