我用 active_admin 界面编写了简单的统计应用程序，我不想在 heroku 上托管它。当我输入 git push heroku master 我有以下错误：
Fetching git://github.com/gregbell/active_admin.git
fatal: Could not parse object 'ac4918ef99cf0272eb5f744b7e3f3fc7cde5811f'.
Git error: command `git reset --hard ac4918ef99cf0272eb5f744b7e3f3fc7cde5811f`
in directory
/tmp/build_8776c788-ed11-4ae5-b374-8618b8523219/vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ac4918ef99cf
has failed.
If this error persists you could try removing the cache directory
'/tmp/build_8776c788-ed11-4ae5-b374-8618b8523219/vendor/bundle/ruby/2.0.0/cache/bundler/git/active_admin-d67faab65e9b74efbc8efb4a777a851e9f78b2ca'
Bundler Output: Fetching gem metadata from https://rubygems.org/........
Fetching gem metadata from https://rubygems.org/..
Fetching git://github.com/gregbell/active_admin.git
fatal: Could not parse object 'ac4918ef99cf0272eb5f744b7e3f3fc7cde5811f'.
Git error: command `git reset --hard ac4918ef99cf0272eb5f744b7e3f3fc7cde5811f`
in directory
/tmp/build_8776c788-ed11-4ae5-b374-8618b8523219/vendor/bundle/ruby/2.0.0/bundler/gems/active_admin-ac4918ef99cf
has failed.
If this error persists you could try removing the cache directory
'/tmp/build_8776c788-ed11-4ae5-b374-8618b8523219/vendor/bundle/ruby/2.0.0/cache/bundler/git/active_admin-d67faab65e9b74efbc8efb4a777a851e9f78b2ca'
!
! Failed to install gems via Bundler.
!
! Push rejected, failed to compile Ruby/Rails app
To git@heroku.com:intense-forest-6444.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git@heroku.com:intense-forest-6444.git'
这是我的 gemfile.lock：
GIT
remote: git://github.com/bmabey/database_cleaner.git
revision: df55cf7b746e792dba1d11eea0d6e31e3abc7e8c
specs:
database_cleaner (1.1.1)
GIT
remote: git://github.com/gregbell/active_admin.git
revision: ac4918ef99cf0272eb5f744b7e3f3fc7cde5811f
branch: rails4
specs:
activeadmin (0.6.0)
arbre (>= 1.0.1)
bourbon (>= 1.0.0)
coffee-rails (>= 3.2.0)
devise (>= 3.0.2)
formtastic (>= 2.3.0.rc2)
inherited_resources (>= 1.4.1)
jquery-rails (>= 3.0.0)
jquery-ui-rails (>= 4.0.0)
kaminari (>= 0.13.0)
rails (>= 3.2.0)
ransack (>= 1.0.0)
sass-rails (>= 3.2.0)
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.0.0)
actionpack (= 4.0.0)
mail (~> 2.5.3)
actionpack (4.0.0)
activesupport (= 4.0.0)
builder (~> 3.1.0)
erubis (~> 2.7.0)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
activemodel (4.0.0)
activesupport (= 4.0.0)
builder (~> 3.1.0)
activerecord (4.0.0)
activemodel (= 4.0.0)
activerecord-deprecated_finders (~> 1.0.2)
activesupport (= 4.0.0)
arel (~> 4.0.0)
activerecord-deprecated_finders (1.0.3)
activesupport (4.0.0)
i18n (~> 0.6, >= 0.6.4)
minitest (~> 4.2)
multi_json (~> 1.3)
thread_safe (~> 0.1)
tzinfo (~> 0.3.37)
addressable (2.3.5)
arbre (1.0.1)
activesupport (>= 3.0.0)
arel (4.0.0)
atomic (1.1.14)
bcrypt-ruby (3.1.2)
bootstrap-sass (2.3.2.2)
sass (~> 3.2)
bourbon (3.1.8)
sass (>= 3.2.0)
thor
builder (3.1.4)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
childprocess (0.3.9)
ffi (~> 1.0, >= 1.0.11)
climate_control (0.0.3)
activesupport (>= 3.0)
cocaine (0.5.1)
climate_control (>= 0.0.3, < 1.0)
coffee-rails (4.0.0)
coffee-script (>= 2.2.0)
railties (>= 4.0.0.beta, < 5.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.6.3)
countries (0.9.2)
currencies (>= 0.4.0)
currencies (0.4.2)
devise (3.1.0)
bcrypt-ruby (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 3.2.6, < 5)
thread_safe (~> 0.1)
warden (~> 1.2.3)
diff-lcs (1.2.4)
erubis (2.7.0)
execjs (2.0.1)
factory_girl (4.2.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.2.1)
factory_girl (~> 4.2.0)
railties (>= 3.0.0)
ffi (1.9.0)
formtastic (2.3.0.rc2)
actionpack (>= 3.0)
growl (1.0.3)
haml (4.0.3)
tilt
haml-rails (0.4)
actionpack (>= 3.1, < 4.1)
activesupport (>= 3.1, < 4.1)
haml (>= 3.1, < 4.1)
railties (>= 3.1, < 4.1)
has_scope (0.6.0.rc)
actionpack (>= 3.2, < 5)
activesupport (>= 3.2, < 5)
hike (1.2.3)
i18n (0.6.5)
inherited_resources (1.4.1)
has_scope (~> 0.6.0.rc)
responders (~> 1.0.0.rc)
jbuilder (1.5.1)
activesupport (>= 3.0.0)
multi_json (>= 1.2.0)
jquery-rails (3.0.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (4.0.5)
railties (>= 3.1.0)
json (1.8.0)
kaminari (0.14.1)
actionpack (>= 3.0.0)
activesupport (>= 3.0.0)
launchy (2.3.0)
addressable (~> 2.3)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
mime-types (1.25)
mini_portile (0.5.1)
minitest (4.7.5)
multi_json (1.8.0)
nokogiri (1.6.0)
mini_portile (~> 0.5.0)
orm_adapter (0.4.0)
paperclip (3.5.1)
activemodel (>= 3.0.0)
activesupport (>= 3.0.0)
cocaine (~> 0.5.0)
mime-types
pg (0.17.0)
pg_search (0.7.0)
activerecord (>= 3.1)
activesupport (>= 3.1)
arel
phony (1.9.0)
phony_rails (0.4.2)
activesupport (>= 3.0)
countries (>= 0.8.2)
phony (>= 1.7.7)
polyamorous (0.6.4)
activerecord (>= 3.0)
polyglot (0.3.3)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.0.0)
actionmailer (= 4.0.0)
actionpack (= 4.0.0)
activerecord (= 4.0.0)
activesupport (= 4.0.0)
bundler (>= 1.3.0, < 2.0)
railties (= 4.0.0)
sprockets-rails (~> 2.0.0)
rails_12factor (0.0.2)
rails_serve_static_assets
rails_stdout_logging
rails_serve_static_assets (0.0.1)
rails_stdout_logging (0.0.2)
railties (4.0.0)
actionpack (= 4.0.0)
activesupport (= 4.0.0)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.1.0)
ransack (1.0.0)
actionpack (>= 3.0)
activerecord (>= 3.0)
polyamorous (~> 0.6.0)
rb-fsevent (0.9.3)
rdoc (3.12.2)
json (~> 1.4)
responders (1.0.0)
railties (>= 3.2, < 5)
rspec-core (2.14.5)
rspec-expectations (2.14.3)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.14.3)
rspec-rails (2.14.0)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.14.0)
rspec-expectations (~> 2.14.0)
rspec-mocks (~> 2.14.0)
rubyzip (0.9.9)
sass (3.2.10)
sass-rails (4.0.0)
railties (>= 4.0.0.beta, < 5.0)
sass (>= 3.1.10)
sprockets-rails (~> 2.0.0)
sdoc (0.3.20)
json (>= 1.1.3)
rdoc (~> 3.10)
selenium-webdriver (2.35.1)
childprocess (>= 0.2.5)
multi_json (~> 1.0)
rubyzip (< 1.0.0)
websocket (~> 1.0.4)
shoulda-matchers (2.4.0)
activesupport (>= 3.0.0)
sprockets (2.10.0)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.0.0)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (~> 2.8)
thor (0.18.1)
thread_safe (0.1.3)
atomic
tilt (1.4.1)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
turbolinks (1.3.0)
coffee-rails
tzinfo (0.3.37)
uglifier (2.2.1)
execjs (>= 0.3.0)
multi_json (~> 1.0, >= 1.0.2)
warden (1.2.3)
rack (>= 1.0)
websocket (1.0.7)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
ruby
DEPENDENCIES
activeadmin!
bootstrap-sass
capybara
coffee-rails (~> 4.0.0)
database_cleaner!
devise
factory_girl_rails
growl
haml-rails
jbuilder (~> 1.2)
jquery-rails
kaminari
launchy
paperclip
pg
pg_search
phony_rails
rails (= 4.0.0)
rails_12factor
rb-fsevent (= 0.9.3)
rspec-rails (~> 2.0)
sass-rails (~> 4.0.0)
sdoc
selenium-webdriver (= 2.35.1)
shoulda-matchers
turbolinks
uglifier (>= 1.3.0)
在我的 gemfile 我有：
gem 'activeadmin', github: 'gregbell/active_admin', branch: 'rails4'
我试图删除 gemfile.lock 并重新捆绑所有内容，但它仍然无法正常工作。有任何想法吗？