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Build: NetBeans IDE Dev (Build 200811140201) VM: Java HotSpot(TM) Client VM, 10.0-b19, Java(TM) SE Runtime Environment, 1.6.0_04-b12 OS: Windows XP, 5.1, x86 User Comments: musilt2: deleted some template in Tools|Templates Stacktrace: java.lang.IllegalStateException: The data object MultiFileObject@13ceeb6[Templates/Classes/Class_1.java] parent: MultiFileObject@2693b2[Templates/Classes] validFlag: false validRoot: MultiFileObject@1cda7e7[root of SystemFileSystem[org.netbeans.core.startup.layers.SystemFileSystem@1cc5af0]] isValidRoot: true is invalid; you may not call getNodeDelegate on it any more; see #17020 and please fix your code at org.openide.loaders.DataObject.getNodeDelegate(DataObject.java:270) at org.openide.loaders.DataShadow$ShadowNode.<init>(DataShadow.java:739) at org.openide.loaders.DataShadow$ShadowNode.cloneNode(DataShadow.java:754) at org.openide.loaders.DataObject.getClonedNodeDelegate(DataObject.java:306) at org.openide.loaders.FolderChildren.createNodes(FolderChildren.java:206) at org.openide.loaders.FolderChildren.createNodes(FolderChildren.java:66)
Created attachment 73770 [details] stacktrace
*** This issue has been marked as a duplicate of 153008 ***