尝试通过RVM将RubyGems升级到版本1.8.10并出现此错误：
$ rvm rubygems latest
Removing old Rubygems files...
Installing rubygems-1.8.10 for ruby-1.9.2-p180 ...
ERROR: Error running 'GEM_PATH="/Users/foo/.rvm/gems/ruby-1.9.2-p180:/Users/foo/.rvm/gems/ruby-1.9.2-p180@global:/Users/foo/.rvm/gems/ruby-1.9.2-p180:/Users/foo/.rvm/gems/ruby-1.9.2-p180@global" GEM_HOME="/Users/foo/.rvm/gems/ruby-1.9.2-p180" "/Users/foo/.rvm/rubies/ruby-1.9.2-p180/bin/ruby" "/Users/foo/.rvm/src/rubygems-1.8.10/setup.rb"', please read /Users/foo/.rvm/log/ruby-1.9.2-p180/rubygems.install.log
WARN: Installation of rubygems did not complete successfully.
检查日志文件（rubygems.install.log）时，这是从安装生成的：
[2011-09-27 21:16:57] GEM_PATH="/Users/foo/.rvm/gems/ruby-1.9.2-
p180:/Users/foo/.rvm/gems/ruby-1.9.2-p180@global:/Users/foo/.rvm/gems/ruby-1.9.2-p180:/Users/foo/.rvm/gems/ruby-1.9.2-p180@global" GEM_HOME="/Users/foo/.rvm/gems/ruby-1.9.2-p180" "/Users/foo/.rvm/rubies/ruby-1.9.2-p180/bin/ruby" "/Users/foo/.rvm/src/rubygems-1.8.10/setup.rb"
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/f_sync_dir.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_header.rb, skipping
unable to convert U+00E1 to US-ASCII in conversion from ISO-8859-1 to UTF-8 to US-ASCII for lib/rubygems/package/tar_input.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_output.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_reader/entry.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_reader.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_writer.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package.rb, skipping
unable to convert U+0160 from UTF-8 to US-ASCII for History.txt, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/f_sync_dir.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_header.rb, skipping
unable to convert U+00E1 to US-ASCII in conversion from ISO-8859-1 to UTF-8 to US-ASCII for lib/rubygems/package/tar_input.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_output.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_reader/entry.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_reader.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package/tar_writer.rb, skipping
unable to convert U+00E1 from UTF-8 to US-ASCII for lib/rubygems/package.rb, skipping
unable to convert U+0160 from UTF-8 to US-ASCII for History.txt, skipping
ERROR: While executing gem ... (RDoc::Error)
error generating index.html: Error while evaluating /Users/foo/.rvm/gems/ruby-1.9.2-p180/gems/rdoc-3.9/lib/rdoc/generator/template/darkfish/index.rhtml: undefined method `[]' for nil:NilClass (RDoc::Error)
RubyGems 1.8.10 installed
有没有人知道更新可能出现的问题？试图通过RVM删除rubygems，然后再次运行更新，但没有运气。
更新：似乎rvm无法运行Ruby 1.9.2。
$ rvm use 1.9.2 WARN: ruby ruby-1.9.2-p290 is not installed. To install do: 'rvm install ruby-1.9.2-p290'
因此，在安装1.9.2-p290后，rubygems的安装成功完成。
$ rvm use 1.9.2
Using /Users/foo/.rvm/gems/ruby-1.9.2-p290
$ rvm rubygems latest
Removing old Rubygems files...
Installing rubygems-1.8.10 for ruby-1.9.2-p290 ...
Installation of rubygems completed successfully.
这对我有用。
答案 0 :(得分：4)
似乎rvm无法运行Ruby 1.9.2。
$ rvm use 1.9.2
WARN: ruby ruby-1.9.2-p290 is not installed. To install do: 'rvm install ruby-1.9.2-p290'
因此，在安装1.9.2-p290后，rubygems的安装成功完成。
$ rvm use 1.9.2
Using /Users/foo/.rvm/gems/ruby-1.9.2-p290
$ rvm rubygems latest
Removing old Rubygems files...
Installing rubygems-1.8.10 for ruby-1.9.2-p290 ...
Installation of rubygems completed successfully.
这对我有用。
答案 1 :(得分：4)
我通过在root
中删除此文件.gemrc来修复它cd ~
rm .gemrc
rvm rubygems latest