在Github上新建一個帶有Readme.md的倉庫，并且第一次將它pull到本地新的倉庫時，經(jīng)常出現(xiàn)

$ 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> master

解決方法：

git pull origin [branchname] --allow-unrelated-histories

參考：http://stackoverflow.com/questions/37937984/git-refusing-to-merge-unrelated-histories/40107973#40107973