azure-sdk-for-net: Long running operation failed with status 'Failed' when trying to create a resource using ARM templates

I am trying to create a deployment based on https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-windows-csharp-template/.

public static async Task<DeploymentExtended> CreateTemplateDeploymentAsync(
   TokenCredentials credential, 
   string groupName, 
   string deploymentName, 
   string subscriptionId)
   {
     Console.WriteLine("Creating the template deployment...");
     var templateParams = new Dictionary<string, Dictionary<string, object>>{
       { "adminPassword", new Dictionary<string, object>{{"value","Azure1234567"}}},
       { "adminUserName", new Dictionary<string, object>{{"value", "davidmu" } }}
     };

     var deployment = new Deployment();
     deployment.Properties = new DeploymentProperties
     {
       Mode = DeploymentMode.Incremental,
       Template = JObject.Parse(File.ReadAllText("Templates\\CreateVMTemplate2.json")),
       Parameters = templateParams
     };
     var resourceManagementClient = new ResourceManagementClient(credential) { SubscriptionId = subscriptionId };
     return await resourceManagementClient.Deployments.CreateOrUpdateAsync(groupName, deploymentName, deployment);
    }

I ran this multiple times and each time I get this exception. Is there anything that I am missing here?

Error: System.AggregateException: One or more errors occurred. —> Microsoft.Rest.Azure.CloudException: Long running operation failed with status ‘Failed’. at Microsoft.Rest.Azure.AzureClientExtensions.<GetPutOrPatchOperationResultAsync>d__12.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Rest.Azure.AzureClientExtensions.<GetPutOrPatchOperationResultAsync>d__01.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Azure.Management.ResourceManager.DeploymentsOperations.<CreateOrUpdateWithHttpMessagesAsync>d__8.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Azure.Management.ResourceManager.DeploymentsOperationsExtensions.<CreateOrUpdateAsync>d__7.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at ConsoleApplication1.Program.<CreateTemplateDeploymentAsync>d__3.MoveNext() in C:\Users\rostams\documents\visual studio 2015\Projects\ConsoleApplication1\ConsoleApplication1\Program.cs:line 151 --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at System.Threading.Tasks.Task1.get_Result() at ConsoleApplication1.Program.Main(String[] args) in C:\Users\rostams\documents\visual studio 2015\Projects\ConsoleApplication1\ConsoleApplication1\Program.cs:line 49 ---> (Inner Exception #0) Microsoft.Rest.Azure.CloudException: Long running operation failed with status 'Failed'. at Microsoft.Rest.Azure.AzureClientExtensions.<GetPutOrPatchOperationResultAsync>d__12.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Rest.Azure.AzureClientExtensions.<GetPutOrPatchOperationResultAsync>d__01.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Azure.Management.ResourceManager.DeploymentsOperations.<CreateOrUpdateWithHttpMessagesAsync>d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.Azure.Management.ResourceManager.DeploymentsOperationsExtensions.<CreateOrUpdateAsync>d__7.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at ConsoleApplication1.Program.<CreateTemplateDeploymentAsync>d__3.MoveNext() in C:\Users\rostams\documents\visual studio 2015\Projects\ConsoleApplication1\ConsoleApplication1\Program.cs:line 151<—