GITHUB-There is no tracking information for the current branch

（1）问题描述：在把本地仓库的内容和github同步时，使用git pull提示：

There is no tracking information for the current branch.
Please specify which branch you want to rebase against.
See git-pull(1) for details.
    git pull
If you wish to set tracking information for this branch you can do so with:

    git branch --set-upstream-to=origin/ master

（2）然后按照提示执行指令git branch --set-upstream-to=origin/master master，依然报错

$ git branch --set-upstream-to=origin/master master
error: the requested upstream branch 'origin/master' does not exist
hint:
hint: If you are planning on basing your work on an upstream
hint: branch that already exists at the remote, you may need to
hint: run "git fetch" to retrieve it.
hint:
hint: If you are planning to push out a new local branch that
hint: will track its remote counterpart, you may want to use
hint: "git push -u" to set the upstream config as you push.

（3）根据网上搜集的资料我尝试着执行了两个指令

1、git branch --set-upstream-to=origin/master

2、git remote add origin https://github.com/jiangzili/20161123.git（仓库地址）

（4）再执行git pull 指令成功与github仓库同步