gem install rspec コマンドを使用するとエラーが発生します。私はプログラミングが初めてで、何か問題があったようです。アドバイスや提案は大歓迎です。
Ruby -v ruby 1.8.7 (2012-02-08 パッチレベル 358) [ユニバーサル-darwin12.0]
RVM -v rvm 1.21.20 (安定版)
問題: gem install rspec, gem -v, which gem, gem list here と入力すると、次のメッセージが表示されます。
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/config_file.rb:221:in read': Is a directory - /Users/JTee/.gemrc (Errno::EISDIR)
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/config_file.rb:221:inload_file' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/ usr/lib/ruby/1.8/rubygems/config_file.rb:168:in initialize'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:384:innew' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:384:in configuration'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:634:inpath' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/source_index.rb:68:in installed_spec_directories'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/source_index.rb:58:infrom_installed_gems' from /System/Library/Frameworks/Ruby.framework/Versions /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/gem_path_searcher.rbsource_index'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/gem_path_searcher.rb:81:inの /1.8/usr/lib/ruby/1.8/rubygems.rb:881:init_gemspecs 内: 13:インチinitialize'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:839:innew' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:839:in searcher'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:838:insynchronize' from /System/Library/Frameworks/Ruby.framework/Versions/1.8 /usr/lib/ruby/1.8/rubygems.rb:838:in searcher'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:478:infind_files から /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:1103 から /usr /bin/gem:8: /usr/bin/gem:8 からの「require」