The specified container does not exist

Question

Am stuck with this error The specified container does not exist.

let me explain,

CloudBlobClient blobStorage = GetBlobStorage("upload");
CloudBlockBlob blob = BlobPropertySetting(blobStorage, Guid.NewGuid().ToString().ToLower() + Path.GetExtension(file.FileName));
blob.UploadFromStream(file.InputStream);

public static CloudBlobClient GetBlobStorage(string cloudBlobContainserName)
    {
        CloudBlobClient blobStorage;
        try
        {
            var storageAccount = CloudStorageAccount.FromConfigurationSetting("StorageConnectionString");
            blobStorage = storageAccount.CreateCloudBlobClient();
            CloudBlobContainer container = blobStorage.GetContainerReference(cloudBlobContainserName); 
            container.CreateIfNotExist();
            var permissions = container.GetPermissions();
            permissions.PublicAccess = BlobContainerPublicAccessType.Container;
            container.SetPermissions(permissions);
        }
        catch (Exception ex)
        {
            Logger.LogError(Log4NetLogger.Category.Exception, "Error in : BlobHandler.GetBlobStorage :>> Exception message: " + ex.Message);
            throw;
        }
        return blobStorage;
    }
    public static CloudBlockBlob BlobPropertySetting(CloudBlobClient cloudBlobClientReferenceName, string blobContentName)
    {
        CloudBlockBlob blob = cloudBlobClientReferenceName.GetBlockBlobReference(blobContentName);


        return blob;
    }

and my StorageConnectionString is

      <Setting name="StorageConnectionString" value="DefaultEndpointsProtocol=https;AccountName=duw;AccountKey=bla bla" />

container 'upload' and the storage account 'duw' exist.

executing blob.UploadFromStream(file.InputStream); statement causes the error.

stack trace :

at Microsoft.WindowsAzure.StorageClient.Tasks.Task1.get_Result() at Microsoft.WindowsAzure.StorageClient.Tasks.Task1.ExecuteAndWait() at Microsoft.WindowsAzure.StorageClient.TaskImplHelper.ExecuteImpl(Func`1 impl) at Microsoft.WindowsAzure.StorageClient.CloudBlob.UploadFromStream(Stream source, BlobRequestOptions options) at Microsoft.WindowsAzure.StorageClient.CloudBlob.UploadFromStream(Stream source) at DAL.Handlers.BlobHandler.CreateAd(HttpPostedFileBase file, Advertisement model) in D:\DU Server\trunk\Du Server\DAL\Handlers\BlobHandler.cs:line 151

inner exception:

{"The remote server returned an error: (404) Not Found."}

can any body help me to sort this out.

first thing to do is to check if container is being created properly using any of azure storage viewers.like cloudstorageexplorer. secondly, see if you are getting reference of blob properly in BlobPropertySetting method? — Mandar Jogalekar
blobStorage.GetContainerReference("upload") gives the following {Microsoft.WindowsAzure.StorageClient.CloudBlobContainer} Attributes: {Microsoft.WindowsAzure.StorageClient.BlobContainerAttributes} Metadata: {System.Collections.Specialized.NameValueCollection} Name: "upload" Properties: {Microsoft.WindowsAzure.StorageClient.BlobContainerProperties} ServiceClient: {Microsoft.WindowsAzure.StorageClient.CloudBlobClient} Uri: {duw.blob.core.windows.net/upload} — Anish Karunakaran
I'm not sure i understand those first 3 lines.. are they class level vars or are you running those from another method not shown here? — crthompson
@paqogomez: class level vars.. all methods i used are shown here.. — Anish Karunakaran

Gaurav Mantri Gaurav Mantri · Accepted Answer · 2013-09-18T05:44:06

Short version

Try the following code for BlobPropertySetting function:

 public static CloudBlockBlob BlobPropertySetting(CloudBlobClient cloudBlobClientReferenceName, string blobContentName)
    {
        CloudBlockBlob blob = cloudBlobClientReferenceName.GetBlockBlobReference("upload/" + blobContentName);
        return blob;
    }

Now for the longer version :)

The reason you're getting this error is because of the way you are constructing the CloudBlockBlob object in BlobPropertySetting method. When you use your code, it creates a blob object with the following URI: https://duv.blob.core.windows.net/blobContentName. If you notice, there's no container name there. Since there's no container name, storage client library assumes that you're trying to create a blob in $root blob container which is a special blob container. You can read more about it here: http://msdn.microsoft.com/en-us/library/windowsazure/hh488356.aspx. Since your storage account does not have this container, you get 404 - Resource Not Found error.

The specified container does not exist

2 Answers