RAD RAILS Problem. Wont start! Linux nubee

Rails
1

Hi
I’ve just installed SUSE linux, downloaded RADRAILS, and extracted it to
/home/myname/bin/radrails.

When i try to run it i get the red radrails logo and then it gives me an
error and stops loading. Its my first day using Linux, previously i
have used windows, so any help is greately appreciated. Here is the log
file with the errors in it :

chrisr@s213:~> cat
/home/chrisr/bin/radrails/configuration/1149175331973.log
!SESSION 2006-06-01 16:22:11.639

eclipse.buildId=unknown
java.version=1.4.2_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86

!ENTRY org.eclipse.osgi 4 0 2006-06-01 16:22:13.647
!MESSAGE An error occurred while automatically activating bundle
org.radrails.ide.ui (13).
!STACK 0
org.osgi.framework.BundleException: The activator
org.radrails.ide.ui.RadRailsIDEPlugin for bundle org.radrails.ide.ui is
invalid
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:141)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:965)
at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:317)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:256)
at
org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.preFindLocalClass(EclipseLazyStarter.java:86)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:402)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:338)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:390)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:351)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
at
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:144)
at
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:74)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.UnsupportedClassVersionError:
org/radrails/ide/ui/RadRailsIDEPlugin (Unsupported major.minor version
49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:160)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:491)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:461)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:420)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:403)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:338)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:390)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:351)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:134)
… 31 more
Root exception:
java.lang.UnsupportedClassVersionError:
org/radrails/ide/ui/RadRailsIDEPlugin (Unsupported major.minor version
49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:160)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:491)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:461)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:420)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:403)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:338)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:390)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:351)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:134)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:965)
at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:317)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:256)
at
org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.preFindLocalClass(EclipseLazyStarter.java:86)
at
org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:402)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:338)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:390)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:351)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
at
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:144)
at
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:74)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

!ENTRY org.eclipse.osgi 4 0 2006-06-01 16:22:13.685
!MESSAGE Application error
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in org.radrails.ide.ui was
unable to load class org.radrails.ide.ui.RadRails.
at
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:162)
at
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:146)
at
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:74)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
org.eclipse.core.runtime.CoreException[1]:
java.lang.ClassNotFoundException: org.radrails.ide.ui.RadRails
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:406)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:351)
at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
at
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:144)
at
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:74)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

!ENTRY org.eclipse.osgi 2 0 2006-06-01 16:22:13.740
!MESSAGE One or more bundles are not resolved because the following root
constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2006-06-01 16:22:13.740
!MESSAGE Bundle update@plugins/org.eclipse.platform_3.2.0.v20060329/ was
not resolved.
!SUBENTRY 2 org.eclipse.platform 2 0 2006-06-01 16:22:13.740
!MESSAGE Missing required bundle
org.eclipse.ui.intro.universal_[3.2.0,4.0.0).

!ENTRY org.eclipse.osgi 2 0 2006-06-01 16:22:13.742
!MESSAGE The following is a complete list of bundles which are not
resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2006-06-01 16:22:13.742
!MESSAGE Bundle update@plugins/org.eclipse.platform_3.2.0.v20060329/
[84] was not resolved.
!SUBENTRY 2 org.eclipse.platform 2 0 2006-06-01 16:22:13.742
!MESSAGE Missing required bundle
org.eclipse.ui.intro.universal_[3.2.0,4.0.0).

2

Surely one of you hardcore linux peeps can solve this easy problem?
If this were a windows problem i’m sure i’d have a quick answer to it.
Its a big pity. I’d really like to use Linux, but there are so many
obstacles.

3

your best bet is to install Eclipse through your distributions
packageing system (eg apt-get/yum/pacman/emerge) and then install the
radrails module from inside eclipse’s extension/upgrade manager
thingamo… the url you need to add to the list is on the frontpage of
the radrails site

and check out rails.el fmr emacs…

4

I know this won’t help you solve your problem, but I just wanted to let
you
know that I installed Suse 10.1 and had no problem running RadRails just
by
downloading and unpacking it. I followed the same basic steps you
described. Perhaps you are missing some sort of dependency?

Hope you get it working. Development has been much smoother working
under
Linux than Windows.

5

My radrails won’t start either on Ubuntu Dapper, but using EasyEclipse
(http://www.easyeclipse.org) instead worked a treat.

They have prepackaged Eclipse distributions for various purposes that
you can just unzip and run right away. Pick the ruby/rails distribution,
then once it’s running all you need to get into Radrails is choose the
‘rails’ perspective from the menu.

6

I was having problems with RadRails0.6.3 on FedoraCore5. Followed the
steps
here without success. I’m now using Easy-Ecilpse. Development it much
smoother on Linux now. Though I still deploy on a Windows box, at least
for
now.
Best of Luck
-Larry