If the directory name of a Rails Project contains a space, then the war:standalone:create target throws the error shown
below:

-- cut here --
(in C:/Users/Arun Gupta/Documents/NetBeansProjects/RailsApplication2)
info: Assembling web application
info: Packing needed Java libraries ...
info:   adding Java library commons-pool-1.3
info:   adding Java library activation-1.1
info:   adding Java library jruby-complete-1.0.2
info:   adding Java library bcprov-jdk14-124
info:   adding Java library goldspike-1.3
info: Packing needed Ruby gems ...
info:   adding Ruby gem rails version 1.2.5
info:   adding Ruby gem rake version 0.7.3
info:   adding Ruby gem activesupport version 1.4.4
info:   adding Ruby gem activerecord version 1.15.5
info:   adding Ruby gem actionpack version 1.13.5
info:   adding Ruby gem actionmailer version 1.3.5
info:   adding Ruby gem actionwebservice version 1.2.5
info:   adding Ruby gem ActiveRecord-JDBC version 0.5
info: Packing needed files ...
info: Creating web archive
C:\Users\Arun\Gupta\Documents\NetBeansProjects\RailsApplication2\config\.. : no such file or directory

rake aborted!
Error: failed to create archive, error code 256

(See full trace by running task with --trace)
Click here to re-run task with tracing enabled 
-- cut here --

Notice, it looks for the incorrect "C:\Users\Arun\Gupta\Documents" instead of "C:\Users\Arun Gupta\Documents". I noticed
this problem on Windows, not sure if it exists on other O/S as well.