不能拉或推

当我做 git pull 在master分支中,git显示以下消息:

There is no tracking information for the current branch.
Please specify which branch you want to merge to.
See git-pull(1) for details.

git pull <remote> <branch>

If you want to set up the tracing information for this branch, you can do it with:
git branch --set-upstream-to=origin/<branch> master

当我这样做的时候 git push 在master分支中,git显示以下消息:

fatal: The current master branch does not have an upstream branch.
To push the current branch and set the remote as upstream, use

git push --set-upstream origin master

所以我愿意 git push --set-upstream origin master ,git显示此消息:

To <my-server-name>
! [rejected] master -> master (non-fast-forward)
error: failed to push some references to '<my-server-name>'.
help: Updates were rejected because the tip of your current branch is
help: behind its remote counterpart. Integrate remote changes (i.e.
help: 'git pull ...') before pushing again.
help: See 'Note about fast-forwards' in 'git push --help' for details.

请帮帮我!