在运行 bundle install时遇到下面问题：
diudiugirl@DIUs:/var/www/ashelf$ bundle install Fetching gem metadata from https://ruby.taobao.org/........... Fetching version metadata from https://ruby.taobao.org/.. Resolving dependencies... Using rake 10.1.0 Using i18n 0.6.9 Using multi_json 1.8.4 Using builder 3.0.4 Using erubis 2.7.0 Using journey 1.0.4 Using rack 1.4.5 Using hike 1.2.3 Using tilt 1.4.1 Using mime-types 1.23 Using polyglot 0.3.3 Using sass 3.2.9 Using thor 0.18.1 Using bcrypt-ruby 3.1.1 Using orm_adapter 0.4.0 Installing json 1.8.0 with native extensions Gem::Ext::BuildError: ERROR: Failed to build gem native extension. current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/json-1.8.0/ext/json/ext/generator /home/diudiugirl/.rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160201-13134-x1fssx.rb extconf.rb creating Makefile current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/json-1.8.0/ext/json/ext/generator make "DESTDIR=" clean current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/json-1.8.0/ext/json/ext/generator make "DESTDIR=" compiling generator.c In file included from generator.c:1:0: ../fbuffer/fbuffer.h: In function ‘fbuffer_to_s’: ../fbuffer/fbuffer.h:175:47: error: macro "rb_str_new" requires 2 arguments, but only 1 given VALUE result = rb_str_new(FBUFFER_PAIR(fb)); ^ ../fbuffer/fbuffer.h:175:20: warning: initialization makes integer from pointer without a cast [-Wint-conversion] VALUE result = rb_str_new(FBUFFER_PAIR(fb)); ^ Makefile:238: recipe for target 'generator.o' failed make: *** [generator.o] Error 1 make failed, exit code 2 Gem files will remain installed in /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/json-1.8.0 for inspection. Results logged to /home/diudiugirl/.rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/json-1.8.0/gem_make.out Using fastercsv 1.5.5 Using has_scope 0.5.1 Using arel 3.0.2 Using tzinfo 0.3.37 Using bundler 1.11.2 Using htmlentities 4.3.2 Using mini_portile 0.6.0 Using rubyzip 1.0.0 Using coderay 1.1.0 Using coffee-script-source 1.3.3 Using country_select 1.1.3 Using devise-i18n 0.5.12 Using diff-lcs 1.1.3 Using libv8 3.3.10.4 Using method_source 0.8.2 Using mini_magick 4.1.0 Installing mysql2 0.3.11 with native extensions Gem::Ext::BuildError: ERROR: Failed to build gem native extension. current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/mysql2-0.3.11/ext/mysql2 /home/diudiugirl/.rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160201-13134-1agnvy7.rb extconf.rb checking for rb_thread_blocking_region()... no checking for rb_wait_for_single_fd()... yes checking for mysql.h... yes checking for errmsg.h... yes checking for mysqld_error.h... yes creating Makefile To see why this extension failed to compile, please check the mkmf.log which can be found here: /home/diudiugirl/.rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/mysql2-0.3.11/mkmf.log current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/mysql2-0.3.11/ext/mysql2 make "DESTDIR=" clean current directory: /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/mysql2-0.3.11/ext/mysql2 make "DESTDIR=" compiling result.c In file included from ./client.h:11:0, from ./mysql2_ext.h:39, from result.c:1: /home/diudiugirl/.rvm/rubies/ruby-2.3.0/include/ruby-2.3.0/ruby/backward/rubysig.h:14:2: warning: #warning rubysig.h is obsolete [-Wcpp] #warning rubysig.h is obsolete ^ In file included from ./mysql2_ext.h:39:0, from result.c:1: ./client.h: In function ‘rb_thread_blocking_region’: ./client.h:23:3: error: ‘TRAP_BEG’ undeclared (first use in this function) TRAP_BEG; ^ ./client.h:23:3: note: each undeclared identifier is reported only once for each function it appears in ./client.h:25:3: error: ‘TRAP_END’ undeclared (first use in this function) TRAP_END; ^ result.c: In function ‘rb_mysql_result_fetch_row’: result.c:258:31: warning: variable ‘tokens’ set but not used [-Wunused-but-set-variable] int hour, min, sec, tokens; ^ result.c:272:58: warning: variable ‘tokens’ set but not used [-Wunused-but-set-variable] unsigned int year, month, day, hour, min, sec, tokens; ^ result.c:315:33: warning: variable ‘tokens’ set but not used [-Wunused-but-set-variable] int year, month, day, tokens; ^ Makefile:238: recipe for target 'result.o' failed make: *** [result.o] Error 1 make failed, exit code 2 Gem files will remain installed in /home/diudiugirl/.rvm/gems/ruby-2.3.0/gems/mysql2-0.3.11 for inspection. Results logged to /home/diudiugirl/.rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/mysql2-0.3.11/gem_make.out Using slop 3.6.0 Using redcarpet 2.2.2 Using rspec-core 2.11.1 Using rspec-mocks 2.11.3 Using ruby-ip 0.9.1 Using rails-i18n 0.7.2 Using activesupport 3.2.12 Using execjs 1.4.0 Using rack-cache 1.2 Using rack-test 0.6.2 Using rack-ssl 1.3.3 Using warden 1.2.1 Using sprockets 2.2.2 Using treetop 1.4.14 Using bourbon 3.1.8 An error occurred while installing json (1.8.0), and Bundler cannot continue. Make sure that `gem install json -v '1.8.0'` succeeds before bundling.
解决方法：
delete file Gemfile.lock之后再运行bundle install就可以