Azure SDK Storage assembly not found exception when publishing

Question

I try to publish a demo application to Windows Azure using Cloud Service and Azure SDK 2.9. In my service I have a Web Role and a Worker Role. Both use Azure Storage. Everything works fine on local hosting (Emulator) but when I try to publish the app I get the following error on Web Role:

Unhandled Exception: System.Runtime.Serialization.SerializationException,
Details: Exception: Unable to find assembly 'Microsoft.WindowsAzure.Storage, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf385)

In the Worker Role project everything is OK, it's using Storage too.

I tried to convert the Web Role to a standard Web Application and everything works fine but I want to resolve this problem on Cloud Application.

What I've tried:

set local copy in references to true
changed .Net Framework to 4.5.1 and 4.6 (default 4.5)
removed and added reference to Storage again
reinstalled all libraries by nuget
published with Storage 7.0 and 6.2
published by VS and by portal (package)
added dependentAssembly to web.config

On my VM I checked the bin folder, Microsoft.WindowsAzure.Storage exists.

Any ideas what is wrong?

I see an issue with same problem on Github: github.com/Azure/azure-storage-net/issues/269. It seems other folks are also running into similar problem. You may want to raise an issue there. HTH. — Gaurav Mantri

Kisiel665 Kisiel665 · Accepted Answer · 2016-05-16T09:45:25

After two days I found a solution for that problem. In my WebRole.cs I had this:

public override bool OnStart()
{
    var csa = CloudStorageAccount.Parse(RoleEnvironment
        .GetConfigurationSettingValue("Credentials"));
    var cqc = csa.CreateCloudQueueClient();
    var inputQueue = cqc.GetQueueReference("inputqueue");
    inputQueue.CreateIfNotExists();
    var outputQueue = cqc.GetQueueReference("outputqueue");
    outputQueue.CreateIfNotExists();
    var ctc = csa.CreateCloudTableClient();
    var ct = ctc.GetTableReference("last");
    ct.CreateIfNotExists();
    return base.OnStart();
}

When I moved this initialization to other place e.g. to RouteConfig.cs everything works perfect. I don't know why but every references to Storage from WebRole throws errors after publishing to Azure. I hope this solution helps.

Azure SDK Storage assembly not found exception when publishing

1 Answers