Git报措：There is no tracking information for the current branch. Please specify which branch you want

在pull拉取远程仓库的项目时，遇到如下错误：

There is no tracking information for the current branch.
Please specify which branch you want to merge with.
See git-pull(1) for details.

    git pull <remote> <branch>

If you wish to set tracking information for this branch you can do so with:

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

大意就是本地分支与远程分支没有建立联系。

建立联系之后，pull成功。