1. Pull is not possible because you have unmerged files.

症状:pull的时候

$ git pull

Pull is not possible because you have unmerged files.
Please, fix them up in the work tree, and then use 'git add/rm <file>'
as appropriate to mark resolution, or use 'git commit -a'

应该是因为local文件冲突了

解决方法:

引用――

1.pull会使用git merge导致冲突,需要将冲突的文件resolve掉 git add -u, git commit之后才能成功pull.

2.如果想放弃本地的文件修改,可以使用git reset --hard FETCH_HEAD,FETCH_HEAD表示上一次成功git pull之后形成的commit点。然后git pull.
注意:

git merge会形成MERGE-HEAD(FETCH-HEAD) 。git push会形成HEAD这样的引用。HEAD代表本地最近成功push后形成的引用。