Today I tried re-syncing my gingerbread code to the latest version
so I fired
$ repo sync
And lo! I got the error message:
error: .repo/manifests/: contains uncommitted changes
After a bit of googling and going through the mailing lists, I finally found the solution:
1. Go to ./repo/manifests
2. $ git reset –hard
3. $ repo sync
[Please note that there are two dashes “- -” before ‘hard’]
And I am back in business.
Herzeleid 
Thanks! This helped me out. This entry is one of the top google results when I googled for a solution. repo sync’ing works once again.
Thank you Alex. Feel free to ask you doubts regarding Android here, I will try to resolve them.
Can you explain about sysfs in android
The sysfs in android is no different than native Linux sysfs
Download and read the pdf in the linux mentioned below.
Click to access mochel.pdf
If you still have a doubt, ask.
Thanks for the help man.
You’re welcome 🙂
Thanks for the help. Just one thing i’d like to note: I don’t know if it’s just a typo, or if there’re different versions which are using different arguments. But instead of ‘git reset -hard’, i needed to use ‘git reset –hard’ (prefixing hard option with two dash-characters).
Yes Stephan, it is a typo and thanks for correcting it.
Nope. No typo. See my other comment. 😉
I see.. it’s your WP theme which parses two standard dashes (hyphens) as an en-dash.
True that! But I like this theme. You can’t have it all now, can you?
Yes, you can: http://wordpress.org/extend/plugins/wp-typography/ 😉
Thanks, will look into it. Cheers mate! BTW you have a page of yours? If yes, do share the link(s).
Thanks this worked for me too.. can you explain how it fixed the issue and what was the reason, I never touched this folder though. Thanks.
Hi William, repo is basically a wrapper over git but it has also few custimizations of its own. Manifests are the folders where the information about the source tree is stored.
In case you have modified any source file (even a blank space) and you want to run ‘repo sync’ which is essentially a ‘git pull’, it will fail as your tree has changes. So what we do is forcefully ‘reset’ the git’s head (the ‘hard’ keyword) to current remote master or any branch you’re on and sync again.
If you still have a doubt check out the following link.
http://source.android.com/source/version-control.html
Much appreciated
I am glad I came across this blog post, as I often get errors when syncing saying that I have uncommitted changes, even when I haven’t modified any files.
Usually I delete all the folders accept the .repo folder, then delete the default.xml manifest file.
Then do “repo init -u git://github.com/…../manifest.git -b kitkat <—I can't reveal my private repo for the BEST ROM EVER… to be released soon… see my blog!!!
So thank you very much for this post because, git reset –hard && ../repo sync is much easier and will sync a bit faster than my way! Thanks again!
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This actually helped me a LOT! THANK YOU VERY MUCH!