# Error when installing JRuby **URL:** \ **Category:** Rails\ **Created:** [July 3, 2008, 7:34pm UTC](https://www.ruby-forum.com/t/error-when-installing-jruby/142137 "2008-07-03T19:34:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![phseth2001](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/b19c9b/32.png) [@phseth2001](https://www.ruby-forum.com/u/phseth2001)\ **Post date:** [July 3, 2008, 7:34pm UTC](https://www.ruby-forum.com/t/error-when-installing-jruby/142137/1 "2008-07-03T19:34:05Z")
Whenever I try to install JRuby, I get the following error. This is on AIX 5.3-5. root@nycserv-deva-app1nim:/usr/local/bin/ruby\_inst/jruby-1.1.2\>bin/jruby rubyfile.rb The java class is not found: org.jruby.Main The only pre-req I am missing is Apache Ant. When I go to install that, I get the following. /usr/local/bin/apache\_inst/apache-ant-1.7.0\>sh build.sh install-lite src/main/org/apache/tools/ant/taskdefs/Delete.java:583: cannot find symbol symbol : method add(org.apache.tools.ant.types.resources.Restrict) location: class org.apache.tools.ant.types.resources.Sort s.add(exists); ^ src/main/org/apache/tools/ant/util/ResourceUtils.java:181: incompatible types found : org.apache.tools.ant.types.resources.selectors.Or required: org.apache.tools.ant.types.resources.selectors.ResourceSelector r.add(new And(new ResourceSelector[] {Type.FILE, new Or( ^ src/main/org/apache/tools/ant/util/ResourceUtils.java:181: cannot find symbol symbol : method add(org.apache.tools.ant.types.resources.selectors.And) location: class org.apache.tools.ant.types.resources.Restrict r.add(new And(new ResourceSelector[] {Type.FILE, new Or( ^ src/main/org/apache/tools/ant/types/resources/selectors/Or.java:50: cannot find symbol symbol : method getSelectors() location: class org.apache.tools.ant.types.resources.selectors.Or for (Iterator i = getSelectors(); i.hasNext()😉 { ^ src/main/org/apache/tools/ant/types/resources/selectors/And.java:50: cannot find symbol symbol : method getSelectors() location: class org.apache.tools.ant.types.resources.selectors.And for (Iterator i = getSelectors(); i.hasNext()😉 { ^ Note: \* uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 47 errors … Failed compiling Ant classes ! Bootstrap FAILED Has anyone seen this before. Param ---
**Author:** ![phseth2001](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/b19c9b/32.png) [@phseth2001](https://www.ruby-forum.com/u/phseth2001)\ **Post date:** [July 3, 2008, 8:17pm UTC](https://www.ruby-forum.com/t/error-when-installing-jruby/142137/2 "2008-07-03T20:17:16Z")
On Thu, Jul 3, 2008 at 12:34 PM, Param Seth [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Whenever I try to install JRuby, I get the following error. This is on > AIX 5.3-5. > > root@nycserv-deva-app1nim:/usr/local/bin/ruby\_inst/jruby-1.1.2\>bin/jruby > rubyfile.rb > The java class is not found: org.jruby.Main Have you considered using the binary distribution? [http://dist.codehaus.org/jruby/jruby-bin-1.1.2.tar.gz](http://dist.codehaus.org/jruby/jruby-bin-1.1.2.tar.gz) Ant is not required to get up and running with it. /Nick ---
**Author:** ![phseth2001](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/b19c9b/32.png) [@phseth2001](https://www.ruby-forum.com/u/phseth2001)\ **Post date:** [July 3, 2008, 8:27pm UTC](https://www.ruby-forum.com/t/error-when-installing-jruby/142137/3 "2008-07-03T20:27:08Z")
I did, but I am still getting this error: root@nycserv-deva-app1nim:/usr/local/bin/apache\_inst2/jruby-1.1.2/bin\>jruby rubyfile.rb The java class is not found: org.jruby.Main JAVA\_HOME is set to /usr/java5 Any ideas? Nick S. wrote: > On Thu, Jul 3, 2008 at 12:34 PM, Param Seth > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Whenever I try to install JRuby, I get the following error. This is on > > AIX 5.3-5. > > > > root@nycserv-deva-app1nim:/usr/local/bin/ruby\_inst/jruby-1.1.2\>bin/jruby > > rubyfile.rb > > The java class is not found: org.jruby.Main > > Have you considered using the binary distribution? > > [http://dist.codehaus.org/jruby/jruby-bin-1.1.2.tar.gz](http://dist.codehaus.org/jruby/jruby-bin-1.1.2.tar.gz) > > Ant is not required to get up and running with it. > > /Nick