# Ruby 1.9 migration problem on Windows **URL:** \ **Category:** Ruby\ **Created:** [May 30, 2008, 1:54pm UTC](https://www.ruby-forum.com/t/ruby-1-9-migration-problem-on-windows/139051 "2008-05-30T13:54:24Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![awarberg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/b5ac83/32.png) [@awarberg](https://www.ruby-forum.com/u/awarberg)\ **Post date:** [May 30, 2008, 1:54pm UTC](https://www.ruby-forum.com/t/ruby-1-9-migration-problem-on-windows/139051/1 "2008-05-30T13:54:24Z")
Hi, I have an application, which currently runs under ruby 1.8.6. I want to adopt the new interpreter to get the syntax improvements and speed. I downloaded the ruby 1.9 zip-archive and unpacked to c:\ruby1.9. Then I changed the path entry for ruby from c:\ruby\bin to c:\ruby1.9\bin. When running IRB I get an error concerning missing readline.dll. I found readline.dll in the bin folder of a zip file at [http://jarp.does.notwork.org/win32/](http://jarp.does.notwork.org/win32/). Now IRB runs fine. Next I do gem install sequel, which apparently completes with success (no error messages) though I need to get zlib.dll from the same site. However when loading it up I get: C:\>irb -r sequel c:/ruby1.9/lib/ruby/1.9.0/irb/init.rb:250:in `require': no such file to load -- sequel (LoadError) from c:/ruby1.9/lib/ruby/1.9.0/irb/init.rb:250:in `block in load\_modules ’ from c:/ruby1.9/lib/ruby/1.9.0/irb/init.rb:248:in `each' from c:/ruby1.9/lib/ruby/1.9.0/irb/init.rb:248:in `load\_modules’ from c:/ruby1.9/lib/ruby/1.9.0/irb/init.rb:21:in `setup' from c:/ruby1.9/lib/ruby/1.9.0/irb.rb:54:in `start’ from c:/ruby1.9/bin/irb.bat:21:in `’ I noticed that a folder appeared c:\LAN, which looks like: C:\LAN └───ruby-1.9.0-0 ├───bin └───lib └───ruby ├───gems │ └───1.9.0 A bit puzzled (gems should be installed under c:\ruby1.9 right?) I try to update rubygems using gem update --system, only to get: C:\>gem update --system Updating RubyGems… Attempting remote update of rubygems-update Successfully installed rubygems-update-1.1.1 1 gem installed Updating version of RubyGems to 1.1.1 Installing RubyGems 1.1.1 ‘C:/LAN/ruby-1.9.0-0/bin/ruby.exe’ is not recognized as an internal or external command, operable program or batch file. Here is my path: C:\>path PATH=C:\Program Files\MiKTeX 2.7\miktex\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WI NDOWS\System32\Wbem;C:\Program Files\Subversion\bin;C:\Program Files\TortoiseSVN \bin;c:\ruby1.9\bin;C:\Program Files\jEdit;C:\Program Files\Java\jdk1.6.0\_05\bin Can you please give me a hint here? 🙂 Kind regards Andreas W.