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This bug was originally marked as duplicate of bug 161833, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.1 (Build 201510222201) VM: Java HotSpot(TM) 64-Bit Server VM, 25.66-b18, Java(TM) SE Runtime Environment, 1.8.0_66-b18 OS: Windows 10 User Comments: GUEST: taking too much time to scan project Stacktrace: java.lang.NullPointerException at org.netbeans.api.debugger.DebuggerManager.refreshDebuggerManagerListeners(DebuggerManager.java:1549) at org.netbeans.api.debugger.DebuggerManager.initDebuggerManagerListeners(DebuggerManager.java:1524) at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:996) at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:965) at org.netbeans.api.debugger.DebuggerManager.getBreakpoints(DebuggerManager.java:603) at org.netbeans.modules.debugger.jpda.projectsui.BreakpointAnnotationProvider.annotate(BreakpointAnnotationProvider.java:148)
Created attachment 161627 [details] stacktrace
Please reinstall NetBeans. There is an error: Warning: the module C:\Program Files\NetBeans 8.1\ide\modules\org-netbeans-modules-javascript2-editor.jar (The system cannot find the file specified) could not be found, ignoring... A bunch of modules can not be installed as a result and there are several not found Bundle files.