The current branch is not configured for pull No value for key branch.master.merge found in configuration

[참조] http://stackoverflow.com/questions/8820668/the-current-branch-is-not-configured-for-pull-no-value-for-key-branch-master-mer

• Window -> Show view -> Other -> GIT -> Git Repositories
• Expand the repo folder you created.
• It will contain a folder called "Working Directory" expand it.
• There will be a folder inside the "Working Directory" folder called ".git" expand it.
• Inside ".git" there will be "config", right click "config" -> open in editor. The config file will open right in Eclipse where you can edit it. I added the following and now I can pull without errors:

[branch "master"]

remote = origin

merge = refs/heads/master