WebJob throws FunctionIndexingException with multiple methods

Question

These methods work individually, but do not work together.

public static class Functions
{
    public static void ProcessQueueMessage([QueueTrigger("queue1")] JobClass message,
        TextWriter log)
    {
    }

    public static void ProcessQueueMessage([QueueTrigger("queue2")] JobClass[] message,
        TextWriter log)
    {
    }
}

On run of the WebJob throws:

Microsoft.Azure.WebJobs.Host.Indexers.FunctionIndexingException occurred Message: Exception thrown: 'Microsoft.Azure.WebJobs.Host.Indexers.FunctionIndexingException' in Microsoft.Azure.WebJobs.Host.dll Additional information: Error indexing method 'ProcessQueueMessage'

Answer 1

The WebJob cannot setup multiple methods that share a name (overloads). Rename the methods so that they are not overloads:

public static class Functions
{
    public static void ProcessQueueMessage([QueueTrigger("queue1")] JobClass message,
        TextWriter log)
    {
    }

    public static void ProcessQueueMessages([QueueTrigger("queue2")] JobClass[] messages,
        TextWriter log)
    {
    }
}