我有一个名为＆＃34; Aadvisor＆＃34;的应用程序，当我尝试在本地运行此应用程序时，我会执行foreman start，如下所示：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ foreman start
14:21:28 web.1 | started with pid 14635
14:21:28 web.1 | bundler: command not found: rackup
14:21:28 web.1 | Install missing gem executables with `bundle install`
14:21:29 web.1 | exited with code 127
14:21:29 system | sending SIGTERM to all processes
SIGTERM received
然后我做＆＃39;捆绑安装＆＃39; ：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ bundle install
Fetching gem metadata from http://rubygems.org/.........
Fetching additional metadata from http://rubygems.org/..
Resolving dependencies...
Using addressable (2.3.5)
Using backports (3.4.0)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:13:in `<main>'
Gem files will remain installed in /home/pallav/Workspace/Aadvisor/vendor/bundle/ruby/1.9.1/gems/bcrypt-ruby-3.1.2 for inspection.
Results logged to /home/pallav/Workspace/Aadvisor/vendor/bundle/ruby/1.9.1/gems/bcrypt-ruby-3.1.2/ext/mri/gem_make.out
An error occurred while installing bcrypt-ruby (3.1.2), and Bundler cannot continue.
Make sure that `gem install bcrypt-ruby -v '3.1.2'` succeeds before bundling.
然后我只需执行gem install bcrypt-ruby -v '3.1.2'，如下所示：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ gem install bcrypt-ruby -v '3.1.2'
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions into the /var/lib/gems/1.9.1 directory.
然后使用＆＃39; sudo＆＃39; sudo gem install bcrypt-ruby -v '3.1.2'，如下所示：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ sudo gem install bcrypt-ruby -v '3.1.2'
[sudo] password for pallav:
Building native extensions. This could take a while...
ERROR: Error installing bcrypt-ruby:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:13:in `<main>'
Gem files will remain installed in /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.1.2 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.1.2/ext/mri/gem_make.out
我在这里检查了错误日志：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.1.2/ext/mri/gem_make.out
bash: /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.1.2/ext/mri/gem_make.out: Permission denied
我的红宝石版本是：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ ruby -v
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]
我的Gem文件是：
source "http://rubygems.org"
gem "rack"
gem "sinatra"
gem "sinatra-contrib"
gem "json"
gem "will_paginate"
gem 'will_paginate-bootstrap'
gem "thin"
#gem "shotgun"
gem 'pg'
gem "data_mapper"
gem "dm-postgres-adapter"
gem "dm-validations"
我确实安装了rvm \curl -sSL https://get.rvm.io | bash并且之后又sudo apt-get install ruby1.9.1-dev我再次尝试bundle install并且我得到了这个：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ bundle install
Fetching source index from http://rubygems.org/
Resolving dependencies................................
Using addressable (2.3.5)
Using backports (3.4.0)
Installing bcrypt-ruby (3.1.2)
Installing daemons (1.1.9)
Installing dm-core (1.2.1)
Installing dm-aggregates (1.2.0)
Installing dm-constraints (1.2.0)
Installing dm-migrations (1.2.0)
Installing fastercsv (1.5.5)
Installing json (1.8.1)
Installing json_pure (1.8.1)
Installing multi_json (1.8.4)
Installing dm-serializer (1.2.2)
Installing dm-timestamps (1.2.0)
Installing dm-transactions (1.2.0)
Installing stringex (1.5.1)
Installing uuidtools (2.1.4)
Installing dm-types (1.2.2)
Installing dm-validations (1.2.0)
Installing data_mapper (1.2.0)
Installing data_objects (0.10.13)
Installing dm-do-adapter (1.2.0)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
checking for main() in -lpq... no
checking for main() in -llibpq... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/ruby1.9.1
--with-pgsql-server-dir
--without-pgsql-server-dir
--with-pgsql-server-include
--without-pgsql-server-include=${pgsql-server-dir}/include
--with-pgsql-server-lib
--without-pgsql-server-lib=${pgsql-server-dir}/lib
--with-pgsql-client-dir
--without-pgsql-client-dir
--with-pgsql-client-include
--without-pgsql-client-include=${pgsql-client-dir}/include
--with-pgsql-client-lib
--without-pgsql-client-lib=${pgsql-client-dir}/lib
--with-pqlib
--without-pqlib
--with-libpqlib
--without-libpqlib
Could not find PostgreSQL build environment (libraries & headers): Makefile not created
Gem files will remain installed in /home/pallav/Workspace/Aadvisor/vendor/bundle/ruby/1.9.1/gems/do_postgres-0.10.13 for inspection.
Results logged to /home/pallav/Workspace/Aadvisor/vendor/bundle/ruby/1.9.1/gems/do_postgres-0.10.13/ext/do_postgres/gem_make.out
An error occurred while installing do_postgres (0.10.13), and Bundler cannot continue.
Make sure that `gem install do_postgres -v '0.10.13'` succeeds before bundling.
我也尝试像这样安装gem install do_postgres -v '0.10.13'：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ sudo gem install do_postgres -v '0.10.13'
Fetching: data_objects-0.10.13.gem (100%)
Fetching: do_postgres-0.10.13.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing do_postgres:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
checking for main() in -lpq... no
checking for main() in -llibpq... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/ruby1.9.1
--with-pgsql-server-dir
--without-pgsql-server-dir
--with-pgsql-server-include
--without-pgsql-server-include=${pgsql-server-dir}/include
--with-pgsql-server-lib
--without-pgsql-server-lib=${pgsql-server-dir}/lib
--with-pgsql-client-dir
--without-pgsql-client-dir
--with-pgsql-client-include
--without-pgsql-client-include=${pgsql-client-dir}/include
--with-pgsql-client-lib
--without-pgsql-client-lib=${pgsql-client-dir}/lib
--with-pqlib
--without-pqlib
--with-libpqlib
--without-libpqlib
Could not find PostgreSQL build environment (libraries & headers): Makefile not created
Gem files will remain installed in /var/lib/gems/1.9.1/gems/do_postgres-0.10.13 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/do_postgres-0.10.13/ext/do_postgres/gem_make.out
最后我将结果检查为：
pallav@pallav-System-Product-Name:~/Workspace/Aadvisor$ /var/lib/gems/1.9.1/gems/do_postgres-0.10.13/ext/do_postgres/gem_make.out
bash: /var/lib/gems/1.9.1/gems/do_postgres-0.10.13/ext/do_postgres/gem_make.out: Permission denied
可能是错误。