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This bug was originally marked as duplicate of bug 240819, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0 (Build 201403101706) VM: Java HotSpot(TM) 64-Bit Server VM, 25.0-b70, Java(TM) SE Runtime Environment, 1.8.0-b132 OS: Windows 7 User Comments: GUEST: Just started NetBeans 8.0 Beta after first install. Lots of errors occurred. GUEST: Cria
Created attachment 146605 [details] stacktrace
Looks like the install is corrupted (a JAR file is missing). Passing to installer guys to request more information and find out what is going on.
Please provide us the installer log - http://wiki.netbeans.org/NBIFAQ#What_information_is_needed_for_a_successful_bug_report.