# Debugger not available

**URL:** <https://www.ruby-forum.com/t/debugger-not-available/181742>\
**Category:** Ruby\
**Created:** [January 17, 2010, 3:31pm UTC](https://www.ruby-forum.com/t/debugger-not-available/181742 "2010-01-17T15:31:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ralphshnelvar](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e19adc/32.png) [@ralphshnelvar](https://www.ruby-forum.com/u/ralphshnelvar)\
**Post date:** [January 17, 2010, 3:31pm UTC](https://www.ruby-forum.com/t/debugger-not-available/181742/1 "2010-01-17T15:31:24Z")

</div>

f:\Ralph-Rails-Apps\WebOfTrust\>ruby script/server webrick --debugger  
=\> Booting WEBrick  
=\> Rails 2.3.5 application starting on [http://0.0.0.0:3000](http://0.0.0.0:3000)  
f:/Ralph-Rails-Apps/WebOfTrust/config/initializers/at\_file\_line\_msg.rb @  
6:  
=\> Debugger enabled  
=\> Call with -d to detach  
=\> Ctrl-C to shutdown server  
[2010-01-17 07:27:14] INFO WEBrick 1.3.1  
[2010-01-17 07:27:14] INFO ruby 1.8.6 (2007-09-24) [i386-mswin32]  
[2010-01-17 07:27:14] INFO WEBrick::HTTPServer#start: pid=3940  
port=3000

\*\*\*\*\* Debugger requested, but was not available: Start server with  
–debugger to  
enable \*\*\*\*\*

* * *

Huh?

If I set a debugger breakpoint at some other points in my app, the  
debugger comes up … so it’s not some sort of typo. And, anyway, stdout  
says the debugger was enaabled.

When is the debugger not available?