1.git pull 命令出现以下错误
$ git pull
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> dev
2.按照提示设置
git branch --set-upstream-to=origin/dev
3.再 git pull 时提示成功
$ git pull
Already up-to-date.
Can't update: no tracked branch No tracked branch configured for branch dev.
原文：http://www.cnblogs.com/skyessay/p/7434702.html