1. Your local changes to the following files would be overwritten by checkout:......Please commit your changes or stash them before you switch branches
*******$ git checkout -b developer origin/developer
error: Your local changes to the following files would be overwritten by checkout:
...
...
Please commit your changes or stash them before you switch branches.
Aborting
解决方法：链接
git stash后重新运行命令
2.