我做了一个铁轨项目,
rails new test_bootstrap.
成功了.
搬到了项目目录并添加了宝石
gem "therubyracer"
gem "less-rails" #Sprockets (what Rails 3.1 uses for its asset pipeline) supports LESS
gem "twitter-bootstrap-rails"
并运行
bundle install
之后,我有这个错误.
Installing libv8 (3.16.14.3)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb
creating Makefile
??? ??? ?? ? ????. ??? ??? ?? ?
????. ??? ??? ?? ? ????.
c:/RailsInstaller/Ruby1.9.3/lib/ruby/ge
ms/1.9.1/gems/libv8-3.16.14.3/ext/libv8/builder.rb:58:in `setup_python!': libv8 requires
python 2 to be installed in order to build, but it is currently not available (RuntimeErr
or) from …尝试使用"gem install therubyracer -v'0.10.2'"在小牛上安装therubyracer但是我收到以下错误:
/Users/dennischen/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
checking for main() in -lobjc... yes
creating Makefile
make
compiling rr.cpp
clang: warning: argument unused during compilation: '-rdynamic'
rr.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
1 warning generated.
compiling v8.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_array.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_callbacks.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_context.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_date.cpp
clang: warning: argument unused …我正在尝试在Mavericks上安装以下gem版本
显然,therubyracer宝石取决于libv8.
什么是libv8？我的一些研究似乎表明它是Google Chrome使用的某种javascript库？
我在安装它时遇到了麻烦,但是这个很棒的帖子既有我的错误,也有关于如何绕过它的解释清楚的答案.
所以我安装libv8了
gem install libv8 -- --with-system-v8
这是我的理解,这安装了gem,但使用我的本地系统安装v8库而不是... gem附带的版本？无论哪种方式,它都是成功的.
在下一步中,我在安装therubyracergem时遇到了麻烦.我不太确定这个gem是做什么的,只是因为它是我正在尝试的rails项目的依赖项bundle install.
它给了我以下错误:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/Users/jeeves.butler/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
checking for main() in -lpthread... yes
checking for main() in -lobjc... yes
checking for v8.h... 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. …我最近升级到10.10优胜美地测试版,但是我在安装Nokogiri时遇到了麻烦.我正在使用RVM和Ruby 1.9.3.我也按照这里的步骤尝试按照Nokogiri主页上的说明进行操作.
我通过自制程序安装了libxml2(2.9.1)和libxslt(1.1.28),并尝试使用我的Xcode 5安装和Xcode 6 beta中的命令行工具.
gem install nokogiri -v '1.5.5'
Building native extensions. This could take a while...
ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.
/Users/grantdavis/.rvm/rubies/ruby-1.9.3-p362/bin/ruby extconf.rb
checking for libxml/parser.h... *** 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
--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 …我一直在讨厌这个问题.我在几个相关的帖子中都遵循了建议,但无济于事.
我从一个全新的Mountain Lion安装开始,安装了命令行工具,并根据我发现通过Homebrew安装gcc-4.2并在/ usr /中添加符号链接的其他一些帖子成功安装了Ruby 1.8.7斌/ GCC-4.2.
但是,现在我无法成功安装libv8.以下错误是我已经从现有建议中得到的.
任何额外的输入？
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/Users/Eric/.rbenv/versions/1.8.7-p352/bin/ruby extconf.rb
creating Makefile
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Traceback (most recent call last):
File "build/gyp/gyp", line 18, in <module>
sys.exit(gyp.main(sys.argv[1:]))
File "build/gyp/pylib/gyp/__init__.py", line 480, in main
generator.GenerateOutput(flat_list, targets, data, params)
File "build/gyp/pylib/gyp/generator/make.py", line 2085, in GenerateOutput
part_of_all=qualified_target in needed_targets)
File "build/gyp/pylib/gyp/generator/make.py", line 756, in Write
self.xcode_settings, self.Absolutify, self.Pchify))
File …我试图bundle在小牛队的大型项目中做一些宝石破坏或我的环境有问题,尽管这是rbenv的全新安装.
$ gem install debugger -v '1.5.0'
Building native extensions. This could take a while...
ERROR: Error installing debugger:
ERROR: Failed to build gem native extension.
/Users/samat/.rbenv/versions/1.9.3-p448/bin/ruby extconf.rb
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
Makefile creation failed
**************************************************************************
No source for ruby-1.9.3-p448 provided with debugger-ruby_core_source gem.
**************************************************************************
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably …我正在尝试在运行OS X 10.9(Mavericks)的新macbook pro上第一次安装rails,我遇到了安装therubyracer的问题.当我做"捆绑安装"时,我收到此错误:
安装therubyracer(0.10.2)时发生错误,Bundler无法继续.
gem install therubyracer -v '0.10.2'在捆绑之前确保成功.
然后我按照他们的指示运行
gem install therubyracer -v '0.10.2'
然后我收到此错误消息:
构建原生扩展.这可能需要一段时间...错误:安装therubyracer时出错:错误:无法构建gem原生扩展.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
在-lobjc中检查main()...是创建Makefile
make"DESTDIR ="编译rr.cpp clang:warning:编译期间未使用的参数:' - undynamic'rr.cpp:48:1:warning:control到达非void函数的结尾[-Wreturn-type]} ^ 1警告产生.编译v8.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_array.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_callbacks.cpp clang:warning:编译期间未使用的参数:' - dynamic '编译v8_context.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_date.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_debug.cpp clang:warning:编译期间未使用的参数:' - rdynamic'编译v8_exception.cpp clang:warning:编译期间未使用的参数:' - daynamic'v8_exception.cpp:10:16:警告:未使用的变量'stack'[-Wunused-variable] static void*stack [20]; 生成^ 1警告.编译v8_external.cpp clang:warning:编译期间未使用的参数:' - undynamic'v8_external.cpp:10:9:警告:未使用的变量'references'[-Wunused-variable] VALUE引用; 生成^ 1警告.编译v8_function.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_handle.cpp clang:warning:编译期间未使用的参数:' - undynamic'编译v8_locker.cpp clang:warning:编译期间未使用的参数:' - deynamic 'v8_locker.cpp:45:5:警告:控制到达非空函数的结尾[-Wreturn-type]} ^ v8_locker.cpp:85:5:警告:控制到达非空函数的结尾[-Wreturn-type生成了} ^ 2个警告.编译v8_message.cpp …