git-无法提交阶段文件

我只是 git 的初学者，我尝试提交 2 个文件，多次尝试使用git add, git add ., git add -a, git add -A,git add --all我尝试 git commit -am "fist commit"

我的项目树结构：

我的不同尝试：

当我尝试：

git add> git commit -am "first commit":

On branch master

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git restore <file>..." to discard changes in working directory)

  (commit or discard the untracked or modified content in submodules)

    modified:   vue-antd-admin (modified content, untracked content)

    modified:   vuestic-admin (modified content)

与git add -a> git commit -am "first commit"：

On branch master

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git restore <file>..." to discard changes in working directory)

  (commit or discard the untracked or modified content in submodules)

    modified:   vue-antd-admin (modified content, untracked content)

    modified:   vuestic-admin (modified content)

git add --all> git commit -am "first commit":

On branch master

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git restore <file>..." to discard changes in working directory)

  (commit or discard the untracked or modified content in submodules)

    modified:   vue-antd-admin (modified content, untracked content)

    modified:   vuestic-admin (modified content)

一次又一次……

当我尝试打开这两个文件时，这是来自 VS 代码的错误：

Unable to open 'vue-antd-admin (Working Tree)': Unable to read file '/Users/mac/Desktop/Test-site/vue-antd-admin' (Error: Unable to read file '/Users/mac/Desktop/Test-site/vue-antd-admin' that is actually a directory).

Unable to open 'vuestic-admin (Working Tree)': Unable to read file '/Users/mac/Desktop/Test-site/vuestic-admin' (Error: Unable to read file '/Users/mac/Desktop/Test-site/vuestic-admin' that is actually a directory).

也许他认为vuestic-admin&vue-antd-admin不是文件，我不知道，我对此非常绝望......