Git submodule add error

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Git submodule add error



I want to add a submodule on a freshly created git repository and I get an error. If I execute the same command again it succeeds.


C:>mkdir MyRepo

C:>cd MyRepo

C:MyRepo>git init
Initialized empty Git repository in C:/MyRepo/.git/

C:MyRepo>git submodule add -b refs/heads/master C:MySubmodulesLibraryMySubmodule MySubmodule
Cloning into 'C:/MyRepo/MySubmodule'...
done.
fatal: 'origin/refs/heads/master' is not a commit and a branch 'refs/heads/master' cannot be created from it
Unable to checkout submodule 'MySubmodule'

C:MyRepo>git submodule add -b refs/heads/master C:MySubmodulesLibraryMySubmodule MySubmodule
Adding existing repo at 'MySubmodule' to the index
warning: LF will be replaced by CRLF in .gitmodules.
The file will have its original line endings in your working directory.



Git version: 2.17.1.windows.1


2.17.1.windows.1



I'd like to know what am I doing wrong and what can I do to make this operation succeed the first time I execute it.



*This question comes as a follow up of a Git Extensions bug where the first time you try to add a submodule it fails but the second time it succeeds. These are the commands issued by Git Extensions when adding a submodule; however, the same behavior occurs when issuing them from the command line. I don't know if this behavior is expected from Git (and the problem is with Git Extensions issuing the wrong commands) or this is a Git bug.





Why are you using refs/heads/master?
– evolutionxbox
Aug 6 at 10:56


refs/heads/master





Because that is what Git Extensions does.
– Jordi
Aug 8 at 13:05




1 Answer
1



Try to use


git submodule add -b master C:MySubmodulesLibraryMySubmodule MySubmodule



-b is the simple branch name.


-b






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