From: matz@... (Yukihiro Matsumoto) Date: 2003-11-27T08:06:05+09:00 Subject: Re: "wrong argument type nil (expected String)" from Dir.chdir Hi, In message "Re: "wrong argument type nil (expected String)" from Dir.chdir" on 03/11/27, Tim Kynerd writes: |More data about this problem. Namely: It doesn't appear when I run this |program in Ruby without the debugger, only when I use the debugger. Might be a bug in debugger. Can you upgrade to ruby-1.8.0 or 1.6-snapshot? ftp://ftp.ruby-lang.org/pub/ruby/1.6-snapshot.tar.gz matz.