# JSpec command line run command doesn't work

**URL:** <https://www.ruby-forum.com/t/jspec-command-line-run-command-doesnt-work/174920>\
**Category:** Ruby\
**Created:** [September 4, 2009, 4:30am UTC](https://www.ruby-forum.com/t/jspec-command-line-run-command-doesnt-work/174920 "2009-09-04T04:30:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![polunochnik](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/65b543/32.png) [@polunochnik](https://www.ruby-forum.com/u/polunochnik)\
**Post date:** [September 4, 2009, 4:30am UTC](https://www.ruby-forum.com/t/jspec-command-line-run-command-doesnt-work/174920/1 "2009-09-04T04:30:43Z")

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Hi.

I’ve just installed the JSpec\* gem and trying to run some test suites.

When I type:

jspec run  
jspec run --browsers ff  
jspec run --browsers ff --server

I receive the next warning and an error report:

\<gem\_dir\>/gems/visionmedia-commander-3.2.9/lib/commander/blank.rb:5:  
warning: undefining `object\_id’ may cause serious problem  
error: wrong number of arguments (1 for 0). Use --trace to view  
backtrace

How can I fix the bug and what’s the reason?

OS: Debian 5.0.2  
Ruby: 1.9.1  
JSpec: 2.10.0  
Firefox: 3.5.2

Thanks.

- [http://visionmedia.github.com/jspec/](http://visionmedia.github.com/jspec/)