Having troubles migrating svn to stash at the svn-migration-scripts.jar sync-rebase step

Hi there. I've been able to complete every step of the migration up until the sync-rebase step from this guide:


The repo will eventually end up in a Stash repo, but I'm using a local repository for the transition period.

I was able to perform a successful "git svn fetch" to see commits coming in from the old SVN repo. However, I receive the following error when I try these commands:

  • java -Dfile.encoding=utf-8 -jar ../svn-migration-scripts.jar sync-rebase
  • java -Dfile.encoding=utf-8 -jar ../svn-migration-scripts.jar sync-rebase --prefix=origin/

Note that I tried out the second command because of this thread. I had received the same warning from git-svn about needing to default the prefix to origin/

Both of those commands resulted in this error:

fatal: ambiguous argument 'remotes/trunk': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
Error finding tracking ref for branch master


Some other info:

  • I'm currently on the master branch
  • here are a few branches listed in 'git branch -r'


2 answers

1 accepted

Hi Matthew, I have had the same problem but could not find a direct fix.

What I decided is to manually proceed with a merge: merge my origin/trunk (svn/trunk in my case) with the master. Then I could see the latest update received from "git svn fetch"

Hope this can help :)


Thanks for the help Jérôme. I ended up having to do most of the migrations manually myself. Once I performed the steps above, doing a rebase on git repository synced things up nicely.

Hi, I've just encountered the same problem and I'm a git newbie. Could you explain what you mean by doing the migrations manually?

Hey, unfortunately it's something I did only once and quite a long time ago, so I don't really remember, sorry. Jerome

OK, I'll ask the question again and see if anyone comes up with a solution. Thanks.

Workaround for this issue, just use an empty prefix while cloning:

git svn clone --prefix='' --stdlayout --authors-file=...

I had the same problem, but using --prefix='' solved the problem. Would be nice if the documentation (https://www.atlassian.com/git/tutorials/migrating-convert) is updated. Using the following: svn-migration-scripts: using version 0.1.56bbc7f Git: using version 2.6.2 Subversion: using version 1.8.8 git-svn: using version 2.6.2

is there any way at all to fix this post-clone? it took so long for our clone to complete Im not sure I have the time to run it again.

@Matt Holbrook-Bull It's been a while since I've used git-svn, and as such please take everything here with a grain of salt.

In theory you should just be able to rename the branch/tags locally to the expected format and it should work. So for example changing "refs/remotes/origin/tags/*" to "refs/remotes/tags/*". Before doing any manual changes on your repository I would first suggest taking a full backup of the clone (especially the .git folder) so that you don't have re-do the clone.

Changing the refs themselves should just require moving the .git/refs/remotes/origin contents up a directory. You'll also need to edit the .git/config file to something like this, where you no longer see 'origin/' in the fetch/branches/tags configuration.

[svn-remote "svn"] 
        url = https://svn.company.com/repos/
        fetch = project-foo/trunk:refs/remotes/trunk 
        branches = project-foo/branches/*:refs/remotes/* 
        tags = project-foo/tags/*:refs/remotes/tags/*

after doing above steps edit .git/packed-refs file and delete "origin/". Then run "git svn fetch".

Then execute

java -Dfile.encoding=utf-8 -jar ~/svn-migration-scripts.jar sync-rebase

Thanks you Charles & Yoganand for the solution! It saved me many hours for new migration. 

Suggest an answer

Log in or Join to answer
Community showcase
Piotr Plewa
Published Dec 27, 2017 in Bitbucket

Recipe: Deploying AWS Lambda functions with Bitbucket Pipelines

Bitbucket Pipelines helps me manage and automate a number of serverless deployments to AWS Lambda and this is how I do it. I'm building Node.js Lambda functions using node-lambda&nbsp...

662 views 0 4
Read article

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you
Atlassian Team Tour

Join us on the Team Tour

We're bringing product updates and pro tips on teamwork to ten cities around the world.

Save your spot