# Unable to preload "rbconfig" in my irb session **URL:** \ **Category:** Ruby\ **Created:** [October 17, 2010, 10:58am UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613 "2010-10-17T10:58:14Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![okkezSS](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/85f322/32.png) [@okkezSS](https://www.ruby-forum.com/u/okkezSS)\ **Post date:** [October 17, 2010, 10:58am UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/1 "2010-10-17T10:58:14Z")
I’m using Ruby 1.9.2 with Windows XP as host, I ran the command irb --simple-prompt -rrbconfig from the command line and got an error stating: “E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:2043:in ``’: No such file or directory - stty -a (Errno::ENOENT)” I’ve attached the complete error statement along with the post, please help. Thanks, Sandeep ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 17, 2010, 11:40pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/2 "2010-10-17T23:40:53Z")
On Oct 17, 5:58am, “Sandeep K.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Have you installed cygwin or cygwin installation bundled with E text editor? Are you using a normal command prompt? What is the output of “SET TERM” ? This has nothing to do with rbconfig but instead if the rb-readline (pure-ruby readline) component that is bundled with Ruby 1.9.2-p0 provided by RubyInstaller. The only way for stty be invoked is an incorrect environment variable or bash/sh installation interfering with rb-readline. I’m not able to recreate this: C:\Users\Luis\>ruby -v ruby 1.9.2p0 (2010-08-18) [i386-mingw32] C:\Users\Luis\>set TERM Environment variable TERM not defined C:\Users\Luis\>irb --simple-prompt -rrbconfig > > Please provide that information and also open a bug report in rb- readline issue tracker: > **[Issues · ConnorAtherton/rb-readline](https://github.com/ConnorAtherton/rb-readline/issues)** > > Pure-Ruby Readline Implementation. Contribute to ConnorAtherton/rb-readline development by creating an account on GitHub. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 18, 2010, 6:45pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/3 "2010-10-18T18:45:22Z")
C:\Documents and Settings\Scarlet Pimpernel\>ruby -v ruby 1.9.2p0 (2010-08-18) [i386-mingw32] C:\Documents and Settings\Scarlet Pimpernel\>set TERM TERM=nutc TERMCAP=E:\RATIONAL\RATION~1\NUTCROOT\etc\termcap TERMINFO=E:\RATIONAL\RATION~1\NUTCROOT\usr\lib\terminfo I’m using a normal command prompt and as I’m yet a beginner I do not know what you mean by: “The only way for stty be invoked is an incorrect environment variable or bash/sh installation interfering with rb-readline.” Thanks, Sandeep. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 18, 2010, 10:14pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/4 "2010-10-18T22:14:40Z")
On Oct 18, 1:45pm, “Sandeep K.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > C:\Documents and Settings\Scarlet Pimpernel\>ruby -v > ruby 1.9.2p0 (2010-08-18) [i386-mingw32] > > C:\Documents and Settings\Scarlet Pimpernel\>set TERM > TERM=nutc > TERMCAP=E:\RATIONAL\RATION~1\NUTCROOT\etc\termcap > TERMINFO=E:\RATIONAL\RATION~1\NUTCROOT\usr\lib\terminfo Can you unset TERM? I searched a bit looking for what could be considered a “nutc” terminal option and nothing was found. Also dunno what could have set that for you. As I indicated in the ticket, please unset it: SET TERM= And try again. > I’m using a normal command prompt and as I’m yet a beginner I do not > know what you mean by: “The only way for stty be invoked is an incorrect > environment variable or bash/sh installation interfering with > rb-readline.” stty is a utility in \*nix systems used to determine terminal capabilities. Due the weird terminal setting you have, it is trying to use stty which is not found. I mentioned that a cygwin installation or something is interfering in your system, which with the above that you provided proven correct. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 3:11pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/5 "2010-10-19T15:11:10Z")
On Oct 18, 10:09pm, Heesob P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > On Oct 18, 1:45pm, “Sandeep K.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > I searched a bit looking for what could be considered a “nutc” > > > > > know what you mean by: "The only way for stty be invoked is an incorrect > > > It seems that the rbreadline.rb distributed with rubyinstaller 1.9.2 > > > is not a bug fixed version. Park, do you consider current rb-readline is candidate for a release? That way I can provide packages and installation instructions to users. Thank you ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 3:17pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/6 "2010-10-19T15:17:17Z")
i have unset the TERM. Now, when i execute the “set TERM” command, i get: C:\Documents and Settings\Scarlet Pimpernel\>set TERM Environment variable TERM not defined Please provide me with the correct environment variable settings. Thanks, Sandeep. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 3:23pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/7 "2010-10-19T15:23:13Z")
Hi, 2010/10/19 Luis L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > On Oct 18, 10:09 pm, Heesob P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Hi, > > > > 2010/10/19 Luis L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > > > On Oct 18, 1:45 pm, “Sandeep K.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > > > > > C:\Documents and Settings\Scarlet Pimpernel\>ruby -v > > > > ruby 1.9.2p0 (2010-08-18) [i386-mingw32] > > It seems that the rbreadline.rb distributed with rubyinstaller 1.9.2 > > is not a bug fixed version. > > Park, do you consider current rb-readline is candidate for a release? Yes, at least, the current version is better than the installer included version. > That way I can provide packages and installation instructions to > users. Regards, Park H. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 3:42pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/8 "2010-10-19T15:42:57Z")
does that mean, I should uninstall my current version of the ruby and opt for an older one or is there a better way out? Thanks, Sandeep ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 6:33pm UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/9 "2010-10-19T18:33:10Z")
On Oct 19, 10:43am, “Sandeep K.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > does that mean, I should uninstall my current version of the ruby and > opt for an older one or is there a better way out? Provided instructions for you in the rb-readline ticket: > > > \\ > C:\\Documents and Settings\\Scarlet Pimpernel\>irb --simple-prompt -rrb…config > E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:2043:in \`\`': No such file or d > irectory - stty -a (Errno::ENOENT) > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:2043:in \`rl\_tty\_s > et\_default\_bindings' > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:2056:in \`readline > \_default\_bindings' > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:2494:in \`readline > \_initialize\_everything' > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:3726:in \`rl\_initi > alize' > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/rbreadline.rb:4720:in \`readline > ' > from E:/Ruby192/lib/ruby/site\_ruby/1.9.1/readline.rb:40:in \`readline' > from E:/Ruby192/lib/ruby/1.9.1/irb/input-method.rb:115:in \`gets' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:139:in \`block (2 levels) in eval\_i > nput' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:273:in \`signal\_status' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:138:in \`block in eval\_input' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:188:in \`call' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:188:in \`buf\_input' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:103:in \`getc' > from E:/Ruby192/lib/ruby/1.9.1/irb/slex.rb:205:in \`match\_io' > from E:/Ruby192/lib/ruby/1.9.1/irb/slex.rb:75:in \`match' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:286:in \`token' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:262:in \`lex' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:233:in \`block (2 levels) > in each\_top\_level\_statement' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:229:in \`loop' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:229:in \`block in each\_top > \_level\_statement' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:228:in \`catch' > from E:/Ruby192/lib/ruby/1.9.1/irb/ruby-lex.rb:228:in \`each\_top\_level\_st > atement' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:155:in \`eval\_input' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:70:in \`block in start' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:69:in \`catch' > from E:/Ruby192/lib/ruby/1.9.1/irb.rb:69:in \`start' > from E:/Ruby192/bin/irb:12:in \`\' > \\ > > > This is the complete error message and here are some additional info: > > C:\\Documents and Settings\\Scarlet Pimpernel\>ruby -v > ruby 1.9.2p0 (2010-08-18) \[i386-mingw32\] > > C:\\Documents and Settings\\Scarlet Pimpernel\>set TERM > TERM=nutc > TERMCAP=E:\\RATIONAL\\RATION~1\\NUTCROOT\\etc\\termcap > TERMINFO=E:\\RATIONAL\\RATION~1\\NUTCROOT\\usr\\lib\\terminfo Will perform a release and instructions soon. ---
**Author:** ![sandymca94](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b5a626/32.png) [@sandymca94](https://www.ruby-forum.com/u/sandymca94)\ **Post date:** [October 19, 2010, 3:09am UTC](https://www.ruby-forum.com/t/unable-to-preload-rbconfig-in-my-irb-session/197613/10 "2010-10-19T03:09:33Z")
Hi, 2010/10/19 Luis L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > Can you unset TERM? > > I mentioned that a cygwin installation or something is interfering in > your system, which with the above that you provided proven correct. It seems that the rbreadline.rb distributed with rubyinstaller 1.9.2 is not a bug fixed version. rubyinstaller 1.9.2 version: def no\_terminal? term = ENV[“TERM”] term.nil? || (term == ‘dumb’) || (term == ‘cygwin’ && RUBY\_PLATFORM =~ /mswin|mingw/) end the latest github version: def no\_terminal? term = ENV[“TERM”] term.nil? || (term == ‘dumb’) || (RUBY\_PLATFORM =~ /mswin|mingw/) end Regards, Park H. Regards, Park H.