1. Download ionic-weather example 2. Import it as cordova project 3. Open config.xml, Platform Properties tab 4. Add device plugin via github url 5. Try to add geolocation plugin via registry. See the following error org.eclipse.core.internal.resources.ResourceException: Resource is out of sync with the file system: '/IonicWeather/www/config.xml' . at org.eclipse.core.internal.localstore.FileSystemResourceManager.read(FileSystemResourceManager.java:793) at org.eclipse.core.internal.resources.File.getContents(File.java:290) at org.eclipse.core.internal.resources.File.getContents(File.java:279) at org.eclipse.wst.sse.core.internal.encoding.CodedReaderCreator.findMementoFromFileCase(CodedReaderCreator.java:177) at org.eclipse.wst.sse.core.internal.encoding.CodedReaderCreator.getEncodingMemento(CodedReaderCreator.java:329) at org.eclipse.wst.sse.core.internal.document.AbstractDocumentLoader.createNewStructuredDocument(AbstractDocumentLoader.java:138) at org.eclipse.wst.sse.core.internal.model.AbstractModelLoader.load(AbstractModelLoader.java:225) at org.jboss.tools.aerogear.hybrid.core.config.WidgetModel.resyncModel(WidgetModel.java:213) at org.jboss.tools.aerogear.hybrid.core.plugin.actions.ConfigXMLUpdateAction.install(ConfigXMLUpdateAction.java:47) at org.jboss.tools.aerogear.hybrid.core.plugin.PluginInstallActionsRunOperation.run(PluginInstallActionsRunOperation.java:69) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2295) at org.jboss.tools.aerogear.hybrid.core.plugin.CordovaPluginManager.runActions(CordovaPluginManager.java:462) at org.jboss.tools.aerogear.hybrid.core.plugin.CordovaPluginManager.installPlugin(CordovaPluginManager.java:149) at org.jboss.tools.aerogear.hybrid.ui.plugins.internal.CordovaPluginWizard$PluginInstallOperation.execute(CordovaPluginWizard.java:125) at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313) at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122) Refreshing and reopening project doesn't help