我正在尝试从Github克隆存储库，我正在运行“bundle install”的步骤。但是，每次我尝试运行时，都会收到以下消息：
An error occurred while installing eventmachine (1.0.3), and Bundler cannot
continue.
Make sure that `gem install eventmachine -v '1.0.3'` succeeds before bundling.
当我运行“gem install eventmachine -v'1.0.3'”时，我得到了
Building native extensions. This could take a while...
ERROR: Error installing eventmachine:
ERROR: Failed to build gem native extension.
/Users/christinating/.rbenv/versions/2.1.5/bin/ruby extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for sys/event.h... yes
checking for sys/queue.h... yes
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling binder.cpp
In file included from binder.cpp:20:
In file included from ./project.h:29:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iostream:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/ios:216:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/__locale:15:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/string:439:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:628:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/memory:604:
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iterator:341:10: fatal error: '__debug' file not found
#include <__debug>
^
1 error generated.
make: *** [binder.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/eventmachine-1.0.3 for inspection.
Results logged to /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-14/2.1.0-static/eventmachine-1.0.3/gem_make.out
我尝试了一些我在网上找到的解决方案（没有用）：
我在我的.ruby-version文件和gemfile中将我的ruby版本更改为2.1.5。
我还将gemfile.lock和gemfile中的eventmachine版本更改为1.0.4，然后还更改为1.0.7。每次更改后，我都尝试运行bundle install或gem install eventmachine。刚刚产生了以下内容：
获取：eventmachine-1.0.7.gem（100％） 构建原生扩展。这可能需要一段时间...... 错误：安装eventmachine时出错： 错误：无法构建gem原生扩展。
/Users/christinating/.rbenv/versions/2.1.5/bin/ruby extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... yes
checking for rb_thread_fd_select()... yes
checking for rb_fdset_t in ruby/intern.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for sys/event.h... yes
checking for sys/queue.h... yes
checking for clock_gettime()... no
checking for gethrtime()... no
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling binder.cpp
In file included from binder.cpp:20:
In file included from ./project.h:29:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iostream:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/ios:216:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/__locale:15:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/string:439:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:628:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/memory:604:
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iterator:341:10: fatal error: '__debug' file not found
#include <__debug>
^
1 error generated.
make: *** [binder.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/eventmachine-1.0.7 for inspection.
Results logged to /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-14/2.1.0-static/eventmachine-1.0.7/gem_make.out
Christinas-iMac:scholarhood christinating$ gem install eventmachine
Building native extensions. This could take a while...
ERROR: Error installing eventmachine:
ERROR: Failed to build gem native extension.
/Users/christinating/.rbenv/versions/2.1.5/bin/ruby extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... yes
checking for rb_thread_fd_select()... yes
checking for rb_fdset_t in ruby/intern.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for sys/event.h... yes
checking for sys/queue.h... yes
checking for clock_gettime()... no
checking for gethrtime()... no
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling binder.cpp
In file included from binder.cpp:20:
In file included from ./project.h:29:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iostream:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/ios:216:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/__locale:15:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/string:439:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/algorithm:628:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/memory:604:
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/iterator:341:10: fatal error: '__debug' file not found
#include <__debug>
^
1 error generated.
make: *** [binder.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/eventmachine-1.0.7 for inspection.
Results logged to /Users/christinating/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-14/2.1.0-static/eventmachine-1.0.7/gem_make.out
我真的没有想法，真的需要一些帮助！
答案 0 :(得分：4)
发生的事情是我没有安装xcode！一旦我下载，我就可以运行bundle install并更新eventmachine