尝试通过 Capistrano 进行部署时，出现以下错误。这发生在我已经工作了一年多的回购上，过去一切都很顺利。
关于如何修复回购的任何想法？
error: unable to find 3b1ab2a2fa39f4ffc4a53a7888223522195e2506
error: unable to read sha1 file of .gitignore (3b1ab2a2fa39f4ffc4a53a7888223522195e2506)
error: unable to find 6cb9767572171070c88d5792022edd855f63e57d
error: unable to read sha1 file of Gemfile (6cb9767572171070c88d5792022edd855f63e57d)
error: unable to find 63303cc69f301a4d691cd4a2fb95005996a1d5fd
error: unable to read sha1 file of app/controllers/mobile_controller.rb (63303cc69f301a4d691cd4a2fb95005996a1d5fd)
error: unable to find 57ca529579101e75240e78985419a73c89a6ba44
..
Checking out files: 100% (5634/5634), done.
fatal: Could not reset index file to revision 'db369d7ee2aa96750ff1fd61f53ec049038a74eb'.