config file or initialization error with Livox-SDK2 v1.2.4

[gabrielheider]

my sdk2_config.json looks like this (like specified in the README):
{
"master_sdk" : true,
"lidar_log_enable" : true,
"lidar_log_cache_size_MB" : 500,
"lidar_log_path" : "./",

"HAP": {
  "lidar_net_info" : {
	"cmd_data_port"  : 56000,
	"push_msg_port"  : 0,
	"point_data_port": 57000,
	"imu_data_port"  : 58000,
	"log_data_port"  : 59000
  },
  "host_net_info" : [
	{
	  "lidar_ip"       : ["192.168.1.10","192.168.1.11","192.168.1.12", "192.168.1.13"],
	  "host_ip"        : "192.168.12.207",
	  "cmd_data_port"  : 56000,
	  "push_msg_port"  : 0,
	  "point_data_port": 57000,
	  "imu_data_port"  : 58000,
	  "log_data_port"  : 59000
	}
  ]
},
"MID360": {
  "lidar_net_info" : {
	"cmd_data_port"  : 56100,
	"push_msg_port"  : 56200,
	"point_data_port": 56300,
	"imu_data_port"  : 56400,
	"log_data_port"  : 56500
  },
  "host_net_info" : [
	{
	  "lidar_ip"       : ["192.168.1.3"],
	  "host_ip"        : "192.168.12.207",
	  "cmd_data_port"  : 56101,
	  "push_msg_port"  : 56201,
	  "point_data_port": 56301,
	  "imu_data_port"  : 56401,
	  "log_data_port"  : 56501
	}
  ]
}

}
i get this errors:
[2023-12-14 15:20:28.953] [console] [error] Parse lidar net info failed, has not host_net_info member or host_net_info is not object. [parse_cfg_file.cpp] [ParseHostNetInfo] [259]
[2023-12-14 15:20:28.953] [console] [error] Parse host net info failed. [parse_cfg_file.cpp] [ParseLidarCfg] [182]
[2023-12-14 15:20:28.953] [console] [error] Parse hap lidar cfg failed. [parse_cfg_file.cpp] [Parse] [99]
Livox Init Failed

what am i doing wrong?

many thanks in advance!