Missing Microsoft.WindowsAzure.Diagnostics assembly

Question

I got the following exception when my WebRole tries to start:

{"Could not load file or assembly 'Microsoft.WindowsAzure.Diagnostics, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)":"Microsoft.WindowsAzure.Diagnostics, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"}

I use Visual Studio 2012 with Azure SDK 2.1

Answer 1

Try find in your .csproj file the following:

<Reference Include="Microsoft.WindowsAzure.Diagnostics, Version=2.0.0.0 />

and replace it with

<Reference Include="Microsoft.WindowsAzure.Diagnostics, Version=2.1.0.0 />

Answer 2

nuget didn't reference Microsoft.WindowsAzure.Diagnostics and microsoft.windowsazure.serviceruntime

You have to reference it manually.

Answer 3

Make sure that all versions of the Storage dll are the same version in the csproj xml. I had one that was 2.0 and one 2.1 and it causes that problem.