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Class 'WebAppExtension' is not found or is abstract -- Eclipse (Helios)  RSS feed

 
echarish Kumar
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This is regarding the XMI file when i try to open a xmi file in Eclipse (Helios) i am getting a error as

org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'webappext.xmi' not found. (platform:/resource/agentportal/WebContent/WEB-INF/ibm-web-ext.xmi, 2, 316)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2591)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2422)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1299)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1468)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1019)

org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'webappext.xmi' not found. (platform:/resource/agentportal/WebContent/WEB-INF/ibm-web-ext.xmi, 2, 316)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2591)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2422)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1299)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1468)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1019)

Can anyone please help me regarding this.
 
Don't get me started about those stupid light bulbs.
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