title: Azure function version 2.0 - app blobTrigger not working
body: <p>I had a working Function App that got a blob input and an event hub output (worked in beta). 
  With latest changes, my function no longer works. 
  I've tried to update the host.json file according to the release note, but it has not reference to blob trigger:</p>
  
  <pre><code>{
  
  
  "version": "2.0",
    "extensions": {
        "blobTriggers" : {
          "name": "blob",
          "type": "blobTrigger",
          "direction": "in",
          "path": "iot3gblobs/{name}",
          "connection": "AzureWebJobsStorage"
        },
  
        "eventHubs": {
          "type": "eventHub",
          "name": "outputEventHubMessages",
          "path": "ioteventhub",
          "connection": "IoTEventHubConnection",
          "cardinality": "many",
          "direction": "out"
        }
      },
      "Host" : 
      {
        "LocalHttpPort": 7071,
        "CORS": "*"
      },
    "disabled": false
  }
  </code></pre>
  
  <p>Also, when upgrading 
  Microsoft.NET.Sdk.Functions from 1.0.14 to 1.0.19 the blobTrigger attribute is not recognized and my code will not compile:</p>
  
  <pre><code>[FunctionName("iotserverparser")]
          public async static Task Run(
              [BlobTrigger("iot3gblobs/{name}", Connection = "AzureWebJobsStorage")]
              Stream blob,
              [EventHub(
                  "outputEventHubMessages", Connection =
                      "IoTEventHubConnection")]
  </code></pre>
  
  <p>As mentioned before, this is because of the last Azure Function App update and I have not seen any example of how to work with Blob Trigger in this new 2.0 version.</p>