有关参考,请参见https://github.com/drmeister/clasp/issues/98
要复制,请执行以下操作:

git clone git://github.com/drmeister/clasp claspcl
cd claspcl
git checkout tags/0.3-test-3
git submodule update --init

结果是:
git submodule update --init
Submodule 'updatedAsdf' (https://github.com/drmeister/asdf.git) registered for path 'src/lisp/kernel/asdf'
Submodule 'src/lisp/kernel/contrib/sicl' (https://github.com/drmeister/SICL.git) registered for path 'src/lisp/kernel/contrib/sicl'
Submodule 'src/mps' (https://github.com/Ravenbrook/mps-temporary) registered for path 'src/mps'
Cloning into 'src/lisp/kernel/asdf'...
remote: Counting objects: 13416, done.
remote: Total 13416 (delta 0), reused 0 (delta 0), pack-reused 13416
Receiving objects: 100% (13416/13416), 5.34 MiB | 838.00 KiB/s, done.
Resolving deltas: 100% (9935/9935), done.
Checking connectivity... done.
Submodule path 'src/lisp/kernel/asdf': checked out 'dcd692a8f9f6a5cb86133123e1c433a9afb4e7e9'
Cloning into 'src/lisp/kernel/contrib/sicl'...
remote: Counting objects: 49356, done.
remote: Total 49356 (delta 0), reused 0 (delta 0), pack-reused 49356
Receiving objects: 100% (49356/49356), 8.49 MiB | 298.00 KiB/s, done.
Resolving deltas: 100% (37020/37020), done.
Checking connectivity... done.
fatal: reference is not a tree: 280c12ab49223c64c6f914944287a7d049cf4dd0
Cloning into 'src/mps'...
remote: Counting objects: 25250, done.
remote: Total 25250 (delta 0), reused 0 (delta 0), pack-reused 25250
Receiving objects: 100% (25250/25250), 86.87 MiB | 831.00 KiB/s, done.
Resolving deltas: 100% (15851/15851), done.
Checking connectivity... done.
Submodule path 'src/mps': checked out '3e6640e7eeb5d086adec18e6227a84da59898e1c'
Unable to checkout '280c12ab49223c64c6f914944287a7d049cf4dd0' in submodule path 'src/lisp/kernel/contrib/sicl'

如您所见,复制配方不触及sicl子模块。所以,我最好的猜测是,claspgit存储库在其内部某处有一个对280c12ab49223c64c6f914944287a7d049cf4dd0的虚假引用。git上的人似乎也认为这是合理的。如您所见,复制配方不触及sicl子模块。那么,如何才能最好地解决这个问题呢?git存储库需要什么样的手术?
注意:如果没有clasp步骤,则不会显示问题。所以问题大概就出在那个分支上,这里git checkout tags/0.3-test-3

最佳答案

我按照你的指示做了,并且能够重现这个问题。
这不是你做的,对象280c12ab49223c64c6f914944287a7d049cf4dd0
已损坏,您无法修复它。
我设法做了一个变通办法,并得到了主人的内容:

git show 280c12ab49223c64c6f914944287a7d049cf4dd0
(will display bad object)
cd sicl
git checkout clos
git branch -d master
git fetch --all --prune
git checkout master
git fsck

在上述步骤之后,git show 280c12ab49223c64c6f914944287a7d049cf4dd0仍然显示坏对象(因为它是原始存储库中的一个问题)
但更奇怪的是,git fsck没有发现任何错误,我将在今天晚些时候研究它。
到目前为止,解决办法将允许你继续你的工作。

07-24 12:33