gems dependencies not installed

[riadh-elloumi]

Hi

I tried to install ruby-band gem within jruby 1.7.8, the command was successful:

/opt/jruby-1.7.8/bin/jruby -S gem install ruby-band
Fetching: i18n-0.6.1.gem (100%)
Successfully installed i18n-0.6.1
Fetching: multi_json-1.8.2.gem (100%)
Successfully installed multi_json-1.8.2
...

But when I run a small program:
cat classify_function.rb
-->
require 'rubygems'
require 'ruby-band'

classifier = Weka::Classifier::Lazy::LWL.new
puts classifier.description
puts classifier.list_options

jruby complains that it cannot find multi_json-1.8.0. Note that multi_json-1.8.2 is installed. May be you need to update the dependencies versions.

Thanks

Riadh.

[arrigonialberto86]

Thank you for pointing that out, I will get to it right now!

[arrigonialberto86]

your example should be working now. Please let me know if you come across some other problems.
Thank's again!

[riadh-elloumi]

Thank you
The gem version mismatch if fixed now, but I have this problem now:
NameError: cannot link Java class jbundler.Aether, probable missing dependency: org/sonatype/aether/artifact/Artifact
for_name at org/jruby/javasupport/JavaClass.java:1250
get_proxy_class at org/jruby/javasupport/JavaUtilities.java:34
java_import at file:/opt/jruby-1.7.8/lib/jruby.jar!/jruby/java/core_ext/object.rb:26
map at org/jruby/RubyArray.java:2413
java_import at file:/opt/jruby-1.7.8/lib/jruby.jar!/jruby/java/core_ext/object.rb:22
setup_classloader at /opt/jruby-1.7.8/lib/ruby/gems/shared/gems/jbundler-0.4.3/lib/jbundler/aether.rb:46
initialize at /opt/jruby-1.7.8/lib/ruby/gems/shared/gems/jbundler-0.4.3/lib/jbundler/aether.rb:51
(root) at /opt/jruby-1.7.8/lib/ruby/gems/shared/gems/jbundler-0.4.3/lib/jbundler.rb:36
require at org/jruby/RubyKernel.java:1084
(root) at /opt/jruby-1.7.8/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:1
require at /opt/jruby-1.7.8/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:55
require at org/jruby/RubyKernel.java:1084
(root) at /opt/jruby-1.7.8/lib/ruby/gems/shared/gems/ruby-band-0.1.11/lib/ruby-band.rb:3
(root) at apec_classify_function.rb:40

[arrigonialberto86]

I checked the installation and on OSX and linux looks fine. I am using Jruby 1.7.4 with RVM, could you tell which system you are working on ? Thank you very much

[arrigonialberto86]

Also, the build is working with Travis on the same Jruby version

[riadh-elloumi]

Hi

My system is Ubuntu 12.04 64bits with jruby 1.7.8 and without RVM. I also tried jruby 1.7.3. The JVM used by jruby is Java Hotspot JDK 1.7 64bits from Oracle.

Thank you for your help!

[arrigonialberto86]

There's a topic about this same problem here https://www.ruby-forum.com/topic/331178 , I will try to tackle this as soon as I can this week :)

[arrigonialberto86]

OK, just to be sure we are on the same page :)
Did you remember to install Maven before installing the gem?
Last time I checked on Ubuntu it was already installed, but just to be sure try:
apt-get install maven

[arrigonialberto86]

I should have fixed the problem by adding the Maven dependency mentioned in the error message, but I have no proper way to test the solution at the time (I am woking on OSX with a different Java version). Please let me know if the problem does not go away :)

[riadh-elloumi]

Hi
I installed maven, reinstalled ruby-band, changed from Oracle Java to OpenJDK and the problem is not solved.
May be something is wrong with my Java installation: CLASSPATH, etc.
Thanks again for your help

[arrigonialberto86]

Is the problem still exactly the same? I am sorry about that
Could you please post again the error you're getting?
Thank you!
Alberto

2013/12/4 riadh-elloumi notifications@github.com

Hi
I installed maven, reinstalled ruby-band, changed from Oracle Java to
OpenJDK and the problem is not solved.
May be something is wrong with my Java installation: CLASSPATH, etc.
Thanks again for your help

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/4#issuecomment-29852903
.

[arrigonialberto86]

OK, I added JDK 1.6 and 1.7 to travis tests (both Oracle and Open) and it works. I am guessing the problem is related to configuration. Please try to check Jbundler version also (should be 0.4.3)
PS You may want to use RVM if you don't want to mess with your system settings:)