Git错误

Pathspec 'xxx' is in submodule

git rm -rf --cached CocktailMakerModule/
git add CocktailMakerModule/

unable to index file

• 错误：

error: unable to index file third_party
fatal: updating files failed

• 解决方法：
  进入对应目录再重新git add

cd third_party
git add .

再重新提交：

git commit -m "Trying to commit from command line"