git pull 出现 There is no tracking information for the current branch

今天在git  pull的时候出现：

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> devMan-branch-noip-QRcode-install

解决方法，编辑.git 里的config文件：

vim .git/config

添加了如下：

[branch "devMan-branch-noip-install"]
        remote = origin
        merge = refs/heads/devMan-branch-noip-install

--- 以下为我添加的内容 ---

[branch "devMan-branch-noip-QRcode-install"]
        remote = origin
        merge = refs/heads/devMan-branch-noip-QRcode-install

再次git pull 成功：

localhost:ci liyuanhong$ vim .git/config 
localhost:ci liyuanhong$ cp .git/config .git/config.bak
localhost:ci liyuanhong$ vim .git/config 
localhost:ci liyuanhong$ git pull
Merge made by the 'recursive' strategy.
 README.md                | 1 +
 static/devMS/js/index.js | 4 ++--
 static/devMS/js/login.js | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)