I just redid the second of the Wonder tutorials, and ran into the same error - question, did I install WOLips incorrectly?
[2015-10-20 18:48:31 IDT] <main>
java.lang.NullPointerException
at com.webobjects._ideservices._IDEProjectWOLips.bundlePathURL(_IDEProjectWOLips.java:174)
at com.webobjects._ideservices._WOProject.bundlePath(_WOProject.java:540)
at com.webobjects.appserver._private.WOProjectBundle._initBundlePath(WOProjectBundle.java:92)
at com.webobjects.appserver._private.WODeployedBundle.<init>(WODeployedBundle.java:90)
at com.webobjects.appserver._private.WOProjectBundle.<init>(WOProjectBundle.java:40)
at com.webobjects.appserver._private.WODeployedBundle.bundleWithNSBundle(WODeployedBundle.java:746)
at com.webobjects.appserver.WOResourceManager._bundleWithNSBundle(WOResourceManager.java:186)
at com.webobjects.appserver.WOResourceManager._locateBundleForFrameworkNamed(WOResourceManager.java:208)
at com.webobjects.appserver.WOResourceManager._cachedBundleForFrameworkNamed(WOResourceManager.java:233)
at com.webobjects.appserver.WOResourceManager._initFrameworkProjectBundles(WOResourceManager.java:254)
at com.webobjects.appserver.WOResourceManager.<init>(WOResourceManager.java:69)
at er.extensions.appserver.ERXResourceManager.<init>(ERXResourceManager.java:48)
at er.extensions.appserver.ERXApplication.createResourceManager(ERXApplication.java:1115)
at com.webobjects.appserver.WOApplication.resourceManager(WOApplication.java:1663)
at er.extensions.foundation.ERXFileUtilities.inputStreamForResourceNamed(ERXFileUtilities.java:627)
at er.extensions.foundation.ERXFileUtilities.readPropertyListFromFileInFramework(ERXFileUtilities.java:820)
at er.extensions.appserver.ERXResourceManager._additionalMimeTypes(ERXResourceManager.java:405)
at er.extensions.appserver.ERXResourceManager.<clinit>(ERXResourceManager.java:46)
at er.extensions.appserver.ERXApplication.createResourceManager(ERXApplication.java:1115)
at com.webobjects.appserver.WOApplication.<init>(WOApplication.java:841)
at er.extensions.appserver.ajax.ERXAjaxApplication.<init>(ERXAjaxApplication.java:30)
at er.extensions.appserver.ERXApplication.<init>(ERXApplication.java:1122)
at your.app.Application.<init>(Application.java:14)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at java.lang.Class.newInstance(Class.java:442)
at com.webobjects.appserver.WOApplication.main(WOApplication.java:547)
at er.extensions.appserver.ERXApplication.main(ERXApplication.java:877)
at your.app.Application.main(Application.java:11)