[英]Ruby “gem generate” indexer broken with XML Builder 3.0.0. How to fix?
Problem: gem generate fails because it's missing XML Builder. 问题:gem生成失败,因为缺少XML Builder。
$ gem generate ERROR: While executing gem ... (RuntimeError) Gem::Indexer requires that the XML Builder library be installed: gem install builder
How to fix this? 如何解决这个问题?
I found a solution: edit rubygem source code file indexer.rb to require the older Builder. 我找到了一个解决方案:编辑rubygem源代码文件indexer.rb以要求使用较旧的Builder。
gem 'builder', '~> 2.1'
require 'builder/xchar'
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