在Mac OS High Sierra中，foodcritic（3.0.3）gem安装失败

Question

我的美食评论家的宝石安装失败，并出现以下错误

Following gems were not installed:
foodcritic (3.0.3): Error installing foodcritic
ERROR: Failed to build gem native extension. current directory
/Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl
/Users/dmanna/.rbenv/versions/2.5.1/bin/ruby -r ./siteconf/20180729-63637-1dtcegj.rb.extconf.rb creating Makefile current
directory: /Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl make "DESTDIR=" clean current
directory: /Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl make "DESTDIR=" compiling
yajl.c compiling yajl_alloc.c compiling yajl_buf.c compiling yajl_encode.c compiling yajl_ext.c yajl_ext.c:852:22 error: use of undeclared identifier 'rb_cFixnum' rb_define_method(rb_cFixnum, "to_json", rb_yajl_json_ext_fixnum_to_json, -1); ^ 1 error generated.

make: *** [yajl_ext.o] Error 1 make failed, exit code 2 Gem files remain installed in 
/Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0 for inspection. Results logged to
/Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-darwin-17/2.5.0-static/yajl-ruby-1.1.0/gem_make.out

gem_make.out输出

current directory: /Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl
/Users/dmanna/.rbenv/versions/2.5.1/bin/ruby -r ./siteconf20180729-63637-1dtcegj.rb extconf.rb
creating Makefile

current directory: /Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl
make "DESTDIR=" clean

current directory: /Users/dmanna/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/yajl-ruby-1.1.0/ext/yajl
make "DESTDIR="
compiling yajl.c
compiling yajl_alloc.c
compiling yajl_buf.c
compiling yajl_encode.c
compiling yajl_ext.c
yajl_ext.c:852:22: error: use of undeclared identifier 'rb_cFixnum'
    rb_define_method(rb_cFixnum, "to_json", rb_yajl_json_ext_fixnum_to_json, -1);
                     ^
1 error generated.
make: *** [yajl_ext.o] Error 1

make failed, exit code 2

• rbenv版本-2.5.1 OS
• Mac 10.13.6

我是红宝石的新手。 尝试在RubyMine中导入项目并安装gem时出现此错误。

有人可以让我知道出了什么问题吗，我该如何解决？

Answer 1

Foodcritic 3.0.3是从2013年开始的。请参见此处：
https://rubygems.org/gems/foodcritic/versions/3.0.3

不幸的是，它与最新版本的Ruby不兼容。 您可以选择将Ruby降级到2.4以下，甚至可以降到1.9以确保兼容性，或者将foodcritic升级到最新版本（14.0.0）。