ios – 安装cocoapods时出错：json-1.8.3及更多错误

@H_772_7@gem install cocoapods

我得到了所有这些错误：

@H_772_7@Building native extensions. This Could take a while... ERROR: Error installing cocoapods: ERROR: Failed to build gem native extension. current directory: /usr/local/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator /usr/local/opt/ruby/bin/ruby -r ./siteconf20161228-19158-1ru87yt.rb extconf.rb creaTing Makefile current directory: /usr/local/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator make "DESTDIR=" clean current directory: /usr/local/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator make "DESTDIR=" compiling generator.c generator.c:861:25: error: use of undeclared identifier 'rb_cFixnum' } else if (klass == rb_cFixnum) { ^ generator.c:863:25: error: use of undeclared identifier 'rb_cBignum' } else if (klass == rb_cBignum) { ^ generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero] rb_scan_args(argc,argv,"01",&opts); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args' rb_scan_args0(argc,argvp,fmt,\ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0' rb_scan_args_verify(fmt,varC),vars) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify' verify = rb_scan_args_verify_count(fmt,varc); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 4 expansions in BACktrace; use -fmacro-BACktrace-limit=0 to see all) /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash' rb_scan_args_counT_Block(fmt,ofs,varc,vari) : \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_counT_Block' rb_scan_args_count_end(fmt,vari) : \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end' ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero] rb_scan_args(argc,vari) : \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2163:6: note: expanded from macro 'rb_scan_args_counT_Block' rb_scan_args_count_end(fmt,ofs+1,vari+1)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end' ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero] rb_scan_args(argc,varc); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 4 expansions in BACktrace; use -fmacro-BACktrace-limit=0 to see all) /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2168:6: note: expanded from macro 'rb_scan_args_count_hash' rb_scan_args_counT_Block(fmt,vari+1)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_counT_Block' rb_scan_args_count_end(fmt,varc); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 5 expansions in BACktrace; use -fmacro-BACktrace-limit=0 to see all) /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash' rb_scan_args_counT_Block(fmt,vari) : \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/local/Cellar/ruby/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end' ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 6 warnings and 2 errors generated. make: *** [generator.o] Error 1 make Failed,exit code 2 Gem files will remain installed in /usr/local/lib/ruby/gems/2.4.0/gems/json-1.8.3 for inspection. Results logged to /usr/local/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0/json-1.8.3/gem_make.out

我一直在搜索,我找不到任何有关这些错误的信息.

我怎么解决这个问题？