RackInitializationException: Unknown error - mkdir failed

I’m using OSX 10.5, Tomcat 6, Jruby 1.1.3, Java 1.6.0, Rails 2.10.
I’m trying to make war file with warbler and deploy to tomcat. With
simple application all OK. But when active scaffold is used I’m gettin
error. Did anyone has any ideas about this?

2008.28.7 15:27:17 org.apache.catalina.core.ApplicationContext log
SEVERE: Exception caught
org.jruby.rack.RackInitializationException: Unknown error - mkdir failed
from
file:/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/lib/jruby-complete-1.1.3.jar!/fileutils.rb:172:in
mkdir' from file:/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/lib/jruby-complete-1.1.3.jar!/fileutils.rb:171:ineach’
from
file:/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/lib/jruby-complete-1.1.3.jar!/fileutils.rb:171:in
mkdir' from /Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:11:incopy_files’
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:22
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:20:in
each' from /Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:20 from /Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:3:inchdir’
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:3
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/install_assets.rb:27:in
require' from file:/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/lib/jruby-complete-1.1.3.jar!/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/gems/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in
require' from /Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/gems/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:354:innew_constants_in’
from
/Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/gems/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in
require' from /Users/jvi/java/apache-tomcat-6.0.16/webapps/dws/WEB-INF/vendor/plugins/active_scaffold/init.rb:23:inevaluate_init_rb’

at
org.jruby.rack.DefaultRackApplicationFactory$4.init(DefaultRackApplicationFactory.java:151)
at
org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackApplicationFactory.java:53)
at
org.jruby.rack.PoolingRackApplicationFactory.getApplication(PoolingRackApplicationFactory.java:92)
at
org.jruby.rack.DefaultRackDispatcher.process(DefaultRackDispatcher.java:31)
at org.jruby.rack.RackFilter.doFilter(RackFilter.java:51)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:637)
Caused by: org.jruby.exceptions.RaiseException