There is no tracking information for the current branch.
Please specify which branch you want to rebase against.
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
就是需要指定本地projet分支，跟远程仓库项目分支之间的关系，比如，我们需要本地master对应远程的master
git branch --set-upstream-to=origin/master master