我正在使用JRUBY / Cucumber / Watir框架，我有一个特定的功能文件夹，每次尝试使用内置的HTML格式化程序时都会抛出此错误：
uninitialized constant Syntax::Ruby::Set
Error creating formatter: html (NameError)
org/jruby/RubyModule.java:2690:in `const_missing'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax /lang/ruby.rb:11:in `Ruby'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax /lang/ruby.rb:8:in `Syntax'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax/lang/ruby.rb:3:in `(root)'
org/jruby/RubyKernel.java:1083:in `require'
/Users/Casey.Guerrero/.rvm/rubies/jruby-1.7.10/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:55:in `require'
/Users/Casey.Guerrero/.rvm/rubies/jruby-1.7.10/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53:in `require'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax.rb:1:in `(root)'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax.rb:24:in `load'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/syntax-1.2.0/lib/syntax/convertors/abstract.rb:16:in `for_syntax'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/formatter/html.rb:580:in `SnippetExtractor'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/formatter/html.rb:578:in `Html'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/formatter/html.rb:8:in `Formatter'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/formatter/html.rb:7:in `Cucumber'
org/jruby/RubyKernel.java:1083:in `require'
/Users/Casey.Guerrero/.rvm/rubies/jruby-1.7.10/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:55:in `require'
/Users/Casey.Guerrero/.rvm/rubies/jruby-1.7.10/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53:in `require'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/formatter/html.rb:6:in `(root)'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/constantize.rb:1:in `(root)'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/constantize.rb:17:in `constantize'
org/jruby/RubyArray.java:2409:in `map'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/cli/configuration.rb:81:in `formatter_class'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/cli/configuration.rb:182:in `formatters'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/cli/configuration.rb:178:in `formatters'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/cli/configuration.rb:76:in `build_tree_walker'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/runtime.rb:46:in `run!'
org/jruby/RubyKernel.java:1099:in `load'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/gems/cucumber-1.3.14/bin/../lib/cucumber/cli/main.rb:47:in `execute!'
org/jruby/RubyKernel.java:1119:in `eval'
/Users/Casey.Guerrero/.rvm/gems/jruby-1.7.10/bin/jruby_executable_hooks:15:in `(root)'
使用cucumber-1.3.14和jruby-1.7.10，虽然jruby-1.7.4出错。支持目录中不包含任何格式化程序，也不会在env.rb.中的任何位置引用格式化程序。不使用rake或运行单个功能的任何内容。奇怪的是，其他功能文件夹可以使用与失败的命令参数相同的命令参数输出html报告。例如：
cucumber features/AddText.feature -f html -o report.html -f pretty
或
cucumber features/AddText.feature --format html --out report.html --format pretty
任何见解都会有所帮助。
更新：
出于某种原因卸载然后'syntax'gem允许运行功能并生成html报告。我的印象是'语法'是'黄瓜'依赖...
答案 0 :(得分：3)
当Cucumber发生测试失败时，会将以下行写入控制台：
# gem install syntax to get syntax highlighting
不幸的是，这导致人们安装语法gem，这是导致错误的原因。
执行“gem uninstall syntax”或“sudo gem uninstall syntax”以避免此错误。
答案 1 :(得分：0)
运行“gem uninstall syntax”这将起作用
答案 2 :(得分：0)
我知道这有点旧帖，但想清楚一些事情。
黄瓜1.3.17和1.3.18依赖于语法＆gt; = 1.0.0
并且在当前情况下，问题是语法1.2.0而不是所有语法版本。
所以我们应该做的是
卸载语法1.2.0并安装语法1.0.0
sudo gem install syntax -v 1.0.0