[Bioc-devel] fatal: 'upstream/RELEASE_3_11' is not a commit and a branch 'RELEASE_3_11' cannot be created from it

[Bhagwat, Aditya]

Dear Bioc Core,

Thank you for accepting multicrispr on BioC<https://github.com/Bioconductor/Contributions/issues/1486>.
I was going through the instructions on how to sync existing repositories<https://bioconductor.org/developers/how-to/git/sync-existing-repositories/>.
All instructions up to point 9 work.

Point 10, however fails, when creating the release branch:
$ git checkout -b RELEASE_3_11 upstream/RELEASE_3_11
fatal: 'upstream/RELEASE_3_11' is not a commit and a branch 'RELEASE_3_11' cannot be created  from it

I wonder what I am doing wrong (seems like it should be something trivial, but I am not seeing it).

Thank you for helping!

Aditya

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