From forum posting: http://www.aptana.com/forums/posting.php?p=14382 A dialog pops up that shows two "Show Console View" errors, the details of which are simply "Error". No big deal, I can just start the server by hand. A gigantic backtrace appears in the logs. Here's a portion...

!ENTRY org.eclipse.ui 4 0 2007-11-29 06:42:47.743 !MESSAGE Unhandled event loop exception !STACK 0 org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.StackOverflowError) at org.eclipse.swt.SWT.error(SWT.java:3563) at org.eclipse.swt.SWT.error(SWT.java:3481) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3296) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2974) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) 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:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) at org.eclipse.equinox.launcher.Main.main(Main.java:1148) Caused by: java.lang.StackOverflowError at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findResource(URLClassLoader.java:359) at java.lang.ClassLoader.getResource(ClassLoader.java:977) at java.lang.ClassLoader.getResource(ClassLoader.java:972) at java.lang.ClassLoader.getResource(ClassLoader.java:972) at org.eclipse.core.runtime.internal.adaptor.ContextFinder.getResource(ContextFinder.java:142) at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1159) at javax.xml.parsers.SecuritySupport$4.run(SecuritySupport.java:96) at java.security.AccessController.doPrivileged(Native Method) at javax.xml.parsers.SecuritySupport.getResourceAsStream(SecuritySupport.java:89) at javax.xml.parsers.FactoryFinder.findJarServiceProvider(FactoryFinder.java:250) at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:223) at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:123) at org.eclipse.debug.internal.core.LaunchManager.getDocument(LaunchManager.java:533) at org.eclipse.debug.internal.core.LaunchConfigurationInfo.getAsXML(LaunchConfigurationInfo.java:354) at org.eclipse.debug.internal.core.LaunchConfigurationWorkingCopy.writeNewFile(LaunchConfigurationWorkingCopy.java:264) at org.eclipse.debug.internal.core.LaunchConfigurationWorkingCopy.doSave0(LaunchConfigurationWorkingCopy.java:250) at org.eclipse.debug.internal.core.LaunchConfigurationWorkingCopy.doSave(LaunchConfigurationWorkingCopy.java:221) at org.eclipse.debug.internal.core.LaunchConfigurationWorkingCopy.doSave(LaunchConfigurationWorkingCopy.java:178) at com.aptana.rdt.internal.core.gems.GemManager.createGemLaunchConfiguration(GemManager.java:432) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPaths(GemManager.java:672) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPath(GemManager.java:662) at org.radrails.rails.internal.core.RailsPlugin.buildBinExecutablePath(RailsPlugin.java:343) at org.radrails.rails.internal.core.RailsPlugin.getMongrelPath(RailsPlugin.java:306) at org.radrails.server.core.launching.ServerLaunchListener.grabLaunchedServer(ServerLaunchListener.java:50) at org.radrails.server.core.launching.ServerLaunchListener.launchAdded(ServerLaunchListener.java:40) at org.eclipse.debug.internal.core.LaunchManager$LaunchNotifier.run(LaunchManager.java:437) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.debug.internal.core.LaunchManager$LaunchNotifier.notify(LaunchManager.java:425) at org.eclipse.debug.internal.core.LaunchManager.fireUpdate(LaunchManager.java:953) at org.eclipse.debug.internal.core.LaunchManager.addLaunch(LaunchManager.java:674) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:755) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:608) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:601) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPaths(GemManager.java:682) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPath(GemManager.java:662) at org.radrails.rails.internal.core.RailsPlugin.buildBinExecutablePath(RailsPlugin.java:343) at org.radrails.rails.internal.core.RailsPlugin.getMongrelPath(RailsPlugin.java:306) at org.radrails.server.core.launching.ServerLaunchListener.grabLaunchedServer(ServerLaunchListener.java:50) at org.radrails.server.core.launching.ServerLaunchListener.launchAdded(ServerLaunchListener.java:40) at org.eclipse.debug.internal.core.LaunchManager$LaunchNotifier.run(LaunchManager.java:437) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.debug.internal.core.LaunchManager$LaunchNotifier.notify(LaunchManager.java:425) at org.eclipse.debug.internal.core.LaunchManager.fireUpdate(LaunchManager.java:953) at org.eclipse.debug.internal.core.LaunchManager.addLaunch(LaunchManager.java:674) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:755) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:608) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:601) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPaths(GemManager.java:682) at com.aptana.rdt.internal.core.gems.GemManager.getGemInstallPath(GemManager.java:662)