[BUG]Running any example gives the error 'bpf/libbpf.h' file not found

[codoerrrrrrrrrrrrrrr]

example:bootstrap
./bootstrap.skel.h:9:10: fatal error: 'bpf/libbpf.h' file not found
#include <bpf/libbpf.h>
^~~~~~~~~~~~~~
1 warning and 1 error generated.
make: *** [Makefile:64：bootstrap.wasm] 错误 1

example:runqlat
./runqlat.skel.h:9:10: fatal error: 'bpf/libbpf.h' file not found
#include <bpf/libbpf.h>
^~~~~~~~~~~~~~
1 error generated.
make: *** [Makefile:64：runqlat.wasm] 错误 1

[Officeyutong]

Did you update submodules?

[codoerrrrrrrrrrrrrrr]

Did you update submodules?您是否更新了子模块？

I'm sorry, I'm new to this. Can you be more specific?thanks

[Officeyutong]

Did you update submodules?您是否更新了子模块？

I'm sorry, I'm new to this. Can you be more specific?thanks

Clone the repo again with argument --recursive

[codoerrrrrrrrrrrrrrr]

Did you update submodules?您是否更新了子模块？

I'm sorry, I'm new to this. Can you be more specific?thanks对不起，我是新手。你能说得更具体一点吗？谢谢

Clone the repo again with argument --recursive使用参数 --recursive 再次克隆存储库

Solved. Thank you for your help.