RPC服务无入参时，protobuf无法定义无入参方式

[0HG0]

• 你遇到了什么问题、建议： 一个rpc服务不需要参数时，不能在protobuf文件定义无参数，访问触发bug

• 请执行下面的命令获取环境信息。

php -v & php --ri swoole & composer info | grep -a imi

[1] 5047
[2] 5048
PHP 8.1.5 (cli) (built: May 13 2022 10:16:00) (NTS)
Copyright (c) The PHP Group                        
Zend Engine v4.1.5, Copyright (c) Zend Technologies
[1]  - 5047 done       php -v                      

swoole

Swoole => enabled
Author => Swoole Team <[email protected]>
Version => 4.8.9
Built => Jul 25 2022 15:37:01
coroutine => enabled with boost asm context
epoll => enabled
eventfd => enabled
signalfd => enabled
cpu_affinity => enabled
spinlock => enabled
rwlock => enabled
http2 => enabled
Directive => Local Value => Master Value
swoole.enable_coroutine => On => On
swoole.enable_library => On => On
swoole.enable_preemptive_scheduler => Off => Off
swoole.display_errors => On => On
swoole.use_shortname => On => On
swoole.unixsock_buffer_size => 8388608 => 8388608

• 如果可以，提供最小可复现代码：

message GetGradeRequest {

}

[Yurunsoft]

无法复现，请再检查是否是因为空Request导致的，如果还是无法解决，可以尝试提供一个最小可复现代码

[Yurunsoft]

无回复，默认问题已解决