github - .gitmodules文件初始化问题

Question

*这个repo是 github + hexo 搭的博客

The submodule themes/landscape-plus was not properly initialized with a .gitmodules file.
这个问题怎么来的，如何解决呢？

Answer 1

git子模块，克隆时加递归参数，或者克隆下来init再update