首先，需要确认是否有正确的连接字符串和权限。其次，需要确保事件中心中有消息。最后，可以参考以下代码示例，确保使用正确的名称空间，事件中心名称和接收方组：

string connectionString = "{EVENTHUBS_CONNECTION_STRING}";
string eventHubName = "{EVENTHUB_NAME}";
string consumerGroup = "{CONSUMER_GROUP_NAME}";
var receiverOptions = new EventHubReceiverOptions()
{
    ReceiveTimeout = TimeSpan.FromSeconds(5)
};

await using var consumer = new EventHubConsumerClient(
    consumerGroup,
    connectionString,
    eventHubName,
    receiverOptions);

try
{
    await foreach (PartitionEvent partitionEvent in consumer.ReadEventsAsync(cancellationToken))
    {
        Console.WriteLine($"Message received on partition '{partitionEvent.Partition.PartitionId}': ");
        Console.WriteLine($"\tEventBody: {Encoding.UTF8.GetString(partitionEvent.Data.Body.ToArray())}");
        Console.WriteLine($"\tPartition Key: {partitionEvent.Data.PartitionKey}");
        Console.WriteLine($"\tSequence Number: {partitionEvent.Data.SequenceNumber}");
        Console.WriteLine($"\tOffset: {partitionEvent.Data.Offset}\n");
    }
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}