使用git clone时，子模块没办法同时更新下来。是否要解决该问题

[WLK8899]

(base) y@lenvo:~/Project/Go2$ # in ros workspace's src folder
git clone https://github.com/zitongbai/legged_rl.git --recurse-submodules
正克隆到 'legged_rl'...
remote: Enumerating objects: 520, done.
remote: Counting objects: 100% (520/520), done.
remote: Compressing objects: 100% (324/324), done.
remote: Total 520 (delta 227), reused 430 (delta 143), pack-reused 0 (from 0)
接收对象中: 100% (520/520), 12.01 MiB | 4.63 MiB/s, 完成.
处理 delta 中: 100% (227/227), 完成.
子模组 'legged_gym'（[email protected]:zitongbai/legged_gym.git）已对路径 'legged_gym' 注册
子模组 'libs/unitree_sdk2'（[email protected]:zitongbai/unitree_sdk2.git）已对路径 'libs/unitree_sdk2' 注册
子模组 'rsl_rl'（[email protected]:zitongbai/rsl_rl.git）已对路径 'rsl_rl' 注册
正克隆到 '/home/y/Project/Go2/legged_rl/legged_gym'...
OpenSSL version mismatch. Built against 30000020, you have 30400000
致命错误：无法读取远程仓库。

请确认您有正确的访问权限并且仓库存在。
致命错误：无法克隆 '[email protected]:zitongbai/legged_gym.git' 到子模组路径 '/home/y/Project/Go2/legged_rl/legged_gym'
克隆 'legged_gym' 失败。按计划重试
正克隆到 '/home/y/Project/Go2/legged_rl/libs/unitree_sdk2'...
OpenSSL version mismatch. Built against 30000020, you have 30400000
致命错误：无法读取远程仓库。

请确认您有正确的访问权限并且仓库存在。
致命错误：无法克隆 '[email protected]:zitongbai/unitree_sdk2.git' 到子模组路径 '/home/y/Project/Go2/legged_rl/libs/unitree_sdk2'
克隆 'libs/unitree_sdk2' 失败。按计划重试
正克隆到 '/home/y/Project/Go2/legged_rl/rsl_rl'...
OpenSSL version mismatch. Built against 30000020, you have 30400000
致命错误：无法读取远程仓库。

请确认您有正确的访问权限并且仓库存在。
致命错误：无法克隆 '[email protected]:zitongbai/rsl_rl.git' 到子模组路径 '/home/y/Project/Go2/legged_rl/rsl_rl'
克隆 'rsl_rl' 失败。按计划重试
正克隆到 '/home/y/Project/Go2/legged_rl/legged_gym'...
OpenSSL version mismatch. Built against 30000020, you have 30400000
致命错误：无法读取远程仓库。

请确认您有正确的访问权限并且仓库存在。
致命错误：无法克隆 '[email protected]:zitongbai/legged_gym.git' 到子模组路径 '/home/y/Project/Go2/legged_rl/legged_gym'
第二次尝试克隆 'legged_gym' 失败，退出

[zitongbai]

sorry for late reply

you might need to add your ssh key to github: https://zhuanlan.zhihu.com/p/688103044