[boost] Cannot add any file to GIT "libgit2 returned: Invalid data in index - invalid entry"

Subject: [boost] Cannot add any file to GIT "libgit2 returned: Invalid data in index - invalid entry"
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2015-02-25 08:04:28

Cannot add any new file to GIT repo :-(

 "libgit2 returned: Invalid data in index - invalid entry"

Have recently locally committed changes to an existing Boost.Math sub-module (commit OK).

(But realized that I had forgotten to add a few new files, so tried to add and recommit, but failed
at the add stage).

git status shows expected untracked files and ends:

nothing added to commit but untracked files present (use "git add" to track)

I:\modular-boost\libs\math>

.gitignore is the standard modular-boost issue and looks OK.

I:\modular-boost\libs\math>git version
git version 1.9.5.msysgit.0

Suggestions?  Thanks  Paul

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Paul A. Bristow
Prizet Farmhouse
Kendal UK LA8 8AB
[phone]