首先尝试使用berkshelf gem，但它说
bundle exec berks coolbook test_cookbook
D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win32/api.rb:20:
in `require': cannot load such file -- ffi (LoadError)
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win
32/api.rb:20:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win
32/api/security.rb:19:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win
32/api/security.rb:19:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win
32/security.rb:19:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/win
32/security.rb:19:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control/windows.rb:20:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control/windows.rb:20:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control.rb:30:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control.rb:30:in `<class:FileAccessControl>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control.rb:27:in `<class:Chef>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/fil
e_access_control.rb:22:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/mix
in/enforce_ownership_and_permissions.rb:19:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/mix
in/enforce_ownership_and_permissions.rb:19:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/pro
vider.rb:23:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/pro
vider.rb:23:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/pla
tform.rb:26:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/chef-10.16.2/lib/chef/pla
tform.rb:26:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/berkshelf-1.1.6/lib/berks
helf.rb:2:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/berkshelf-1.1.6/lib/berks
helf.rb:2:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/gems/berkshelf-1.1.6/bin/berks
:3:in `require'
from D:/dev/vagrant/vagrant/embedded/gems/gems/berkshelf-1.1.6/bin/berks
:3:in `<top (required)>'
from D:/dev/vagrant/vagrant/embedded/gems/bin/berks:23:in `load'
from D:/dev/vagrant/vagrant/embedded/gems/bin/berks:23:in `<main>'
然后尝试用不同版本重新安装ffi gem
gem uninstall ffi
gem install ffi -v 1.0.9
gem uninstall ffi
gem install ffi
安装得很好，但安装文档时出现问题
1 gem installed
Installing ri documentation for ffi-1.3.1-x86-mingw32...
Enclosing class/module 'moduleFFI' for class AbstractMemory not known
Enclosing class/module 'moduleFFI' for class NullPointerError not known
Enclosing class/module "classMemory" for alias put_" #name, "put_" #old); \
rb_define_alias(classMemory, "get_" #name, "get_" #old); \
rb_define_alias(classMemory, "put_u" #name, "put_u" #old); \
rb_define_alias(classMemory, "get_u" #name, "get_u" #old); \
rb_define_alias(classMemory, "write_" #name, "write_" #old); \
rb_define_alias(classMemory, "read_" #name, "read_" #old); \
rb_define_alias(classMemory, "write_u" #name, "write_u" #old); \
rb_define_alias(classMemory, "read_u" #name, "read_u" #old); \
rb_define_alias(classMemory, "put_array_of_" #name, "put_array_of_" #old); \
rb_define_alias(classMemory, "get_array_of_" #name, "get_array_of_" #old); \
rb_define_alias(classMemory, "put_array_of_u" #name, "put_array_of_u" #old);
\
rb_define_alias(classMemory, "get_array_of_u" #name, "get_array_of_u" #old);
\
rb_define_alias(classMemory, "write_array_of_" #name, "write_array_of_" #old
); \
rb_define_alias(classMemory, "read_array_of_" #name, "read_array_of_" #old);
\
rb_define_alias(classMemory, "write_array_of_u" #name, "write_array_of_u" #o
ld); \
rb_define_alias(classMemory, "read_array_of_u" #name, "read_array_of_u" #old
);
ALIAS(char, int8);
ALIAS(short, int16);
ALIAS(int, int32);
ALIAS(long_long, int64);
/*
* Document-method: put_float32
* call-seq: memory.put_float32offset, value)
* @param [Numeric] offset
* @param [Numeric] value
* @return [self]
* Put +value+ as a 32-bit float in memory at offset +offset+ (alias: #put_f
loat).
*/
rb_define_method(classMemory, "put_float32", memory_put_float32, 2);
/*
* Document-method: get_float32
* call-seq: memory.get_float32(offset)
* @param [Numeric] offset
* @return [Float]
* Get a 32-bit float from memory at offset +offset+ (alias: #get_float).
*/
rb_define_method(classMemory, "get_float32", memory_get_float32, 1);
rb_define_alias(classMemory, "put_float put_float32 not known
Enclosing class/module "classMemory" for alias get_float get_float32 not known
Enclosing class/module "classMemory" for alias put_array_of_float put_array_of_f
loat32 not known
Enclosing class/module "classMemory" for alias get_array_of_float get_array_of_f
loat32 not known
Enclosing class/module "classMemory" for alias put_double put_float64 not known
Enclosing class/module "classMemory" for alias get_double get_float64 not known
Enclosing class/module "classMemory" for alias put_array_of_double put_array_of_
float64 not known
Enclosing class/module "classMemory" for alias get_array_of_double get_array_of_
float64 not known
Enclosing class/module "classMemory" for alias size total not known
Enclosing class/module 'moduleFFI' for class ArrayType not known
Enclosing class/module 'moduleFFI' for class Buffer not known
Enclosing class/module "BufferClass" for alias length total not known
Enclosing class/module 'moduleFFI' for module DataConverter not known
Enclosing class/module 'moduleFFI' for class DynamicLibrary not known
Enclosing class/module 'LibraryClass' for class Symbol not known
Enclosing class/module 'rbffi_TypeClass' for class Mapped not known
Enclosing class/module 'rbffi_StructLayoutClass' for class CharArray not known
Enclosing class/module "rbffi_StructLayoutCharArrayClass" for alias to_str to_s
not known
Installing RDoc documentation for ffi-1.3.1-x86-mingw32...
Enclosing class/module 'moduleFFI' for class AbstractMemory not known
Enclosing class/module 'moduleFFI' for class NullPointerError not known
Enclosing class/module "classMemory" for alias put_" #name, "put_" #old); \
rb_define_alias(classMemory, "get_" #name, "get_" #old); \
rb_define_alias(classMemory, "put_u" #name, "put_u" #old); \
rb_define_alias(classMemory, "get_u" #name, "get_u" #old); \
rb_define_alias(classMemory, "write_" #name, "write_" #old); \
rb_define_alias(classMemory, "read_" #name, "read_" #old); \
rb_define_alias(classMemory, "write_u" #name, "write_u" #old); \
rb_define_alias(classMemory, "read_u" #name, "read_u" #old); \
rb_define_alias(classMemory, "put_array_of_" #name, "put_array_of_" #old); \
rb_define_alias(classMemory, "get_array_of_" #name, "get_array_of_" #old); \
rb_define_alias(classMemory, "put_array_of_u" #name, "put_array_of_u" #old);
\
rb_define_alias(classMemory, "get_array_of_u" #name, "get_array_of_u" #old);
\
rb_define_alias(classMemory, "write_array_of_" #name, "write_array_of_" #old
); \
rb_define_alias(classMemory, "read_array_of_" #name, "read_array_of_" #old);
\
rb_define_alias(classMemory, "write_array_of_u" #name, "write_array_of_u" #o
ld); \
rb_define_alias(classMemory, "read_array_of_u" #name, "read_array_of_u" #old
);
ALIAS(char, int8);
ALIAS(short, int16);
ALIAS(int, int32);
ALIAS(long_long, int64);
/*
* Document-method: put_float32
* call-seq: memory.put_float32offset, value)
* @param [Numeric] offset
* @param [Numeric] value
* @return [self]
* Put +value+ as a 32-bit float in memory at offset +offset+ (alias: #put_f
loat).
*/
rb_define_method(classMemory, "put_float32", memory_put_float32, 2);
/*
* Document-method: get_float32
* call-seq: memory.get_float32(offset)
* @param [Numeric] offset
* @return [Float]
* Get a 32-bit float from memory at offset +offset+ (alias: #get_float).
*/
rb_define_method(classMemory, "get_float32", memory_get_float32, 1);
rb_define_alias(classMemory, "put_float put_float32 not known
Enclosing class/module "classMemory" for alias get_float get_float32 not known
Enclosing class/module "classMemory" for alias put_array_of_float put_array_of_f
loat32 not known
Enclosing class/module "classMemory" for alias get_array_of_float get_array_of_f
loat32 not known
Enclosing class/module "classMemory" for alias put_double put_float64 not known
Enclosing class/module "classMemory" for alias get_double get_float64 not known
Enclosing class/module "classMemory" for alias put_array_of_double put_array_of_
float64 not known
Enclosing class/module "classMemory" for alias get_array_of_double get_array_of_
float64 not known
Enclosing class/module "classMemory" for alias size total not known
Enclosing class/module 'moduleFFI' for class ArrayType not known
Enclosing class/module 'moduleFFI' for class Buffer not known
Enclosing class/module "BufferClass" for alias length total not known
Enclosing class/module 'moduleFFI' for module DataConverter not known
Enclosing class/module 'moduleFFI' for class DynamicLibrary not known
Enclosing class/module 'LibraryClass' for class Symbol not known
Enclosing class/module 'rbffi_TypeClass' for class Mapped not known
Enclosing class/module 'rbffi_StructLayoutClass' for class CharArray not known
Enclosing class/module "rbffi_StructLayoutCharArrayClass" for alias to_str to_s
not known
gem uninstall ffi
gem install ffi
但没有ffi安装解决了berkshelf的主要问题。
答案 0 :(得分：1)
我在64位Linux下安装另一个gem时遇到了类似的问题。在编译gem时，我会得到与ffi gem完全相同的错误。我的修复是安装libffi-dev包，它工作正常。这个软件包的Windows / MingW版本有一个X86-64所以我建议你确保安装了这个版本。
答案 1 :(得分：0)
我对ruby版本1.9.3 ruby 1.9.3p551和64位linux也有类似的问题。安装libffi-dev是第一步，如回答数字1。
gem uninstall ffi
gem install ffi
仍有同样的问题。只有在添加了rdoc gem的安装后：
gem install rdoc
gem uninstall ffi
gem install ffi
没有错误地工作。