This bug was originally marked as duplicate of bug 246392, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.

Build: NetBeans IDE 8.0.1 (Build 201409082112)
VM: Java HotSpot(TM) 64-Bit Server VM, 24.65-b04, Java(TM) SE Runtime Environment, 1.7.0_67-b01
OS: Windows 7

User Comments:
GUEST: Netbeans was just starting up

GUEST: Just after starting IDE (PHP Bundle/Win 7 Pro)

GUEST: this error occurs on netbeans start. the only problem i'm facing is that the code completion isn't working anymore.

GUEST: It shows as "Unexpected Exception" when I start IDE. I import projects from version 8.0, but not import plugins. May be this comwhere connected.

GUEST: Started NetBeans.
There were 9 programs already open in the project - it was opening the project when the error occurred.  I closed NetBeans and started it again with the same results.

GUEST: open php project.

zootal: All I did was start netbeans and load a project. I think it might have been checking for updates.

GUEST: Not sure but after upgrade of plugins getting this problem, what is it ?

GUEST: Opened netbeans

GUEST: ?????? NetBeans

GUEST: Just opened the IDE with a Project closed before update

GUEST: The error occurs on application start

GUEST: This error keeps popping up every time I start netbeans.

GUEST: Unknow error

GUEST: Just opened NetBeans and got this error box.

GUEST: netbeans restarting after update

GUEST: I think I pressed CTRL-R to refactor while the project was still in process of "background-scanning"

GUEST: Some exception

GUEST: Just booted new version up

eloyvl: at the beginning

dimk: first launch after updating to version 8.0.1

pockiiie: its just notice me. i dont have any idea what's happen.

GUEST: Opening NetBeans - one project open with no breakpoints marked (that I'm aware of!)

ssoares: When opening IDE

GUEST: edited a php template file

GUEST: after loading netbeans

GUEST: It appears during netbeans start

GUEST: just started netbeans

GUEST: start netbeans 8.0.1

GUEST: Upon starting IDE and during Background scanning of projects I receive a warning.

GUEST: IDE just started

GUEST: Hi,
it's a startup problem!
may be caused by wordpress plugin or the last Netbeans update.

GUEST: Just finished doing 41 updates for Netbeans and the first time running it received this error.

GUEST: At the start I saw this error, I think it's due to a old breakpoint I've put in my code

GUEST: Happends while starting the IDE after module load

GUEST: on start-up

GUEST: i don't understand

GUEST: opening up the application

GUEST: Just launched the application, which seems to be working correctly. And noticed the message in the lower right edge of its window, indicating about this error.

GUEST: starting netbeans with 6 open projects

GUEST: nose

GUEST: after update

GUEST: <?????????????????????????>

GUEST: e

GUEST: no idea

GUEST: i just start netbeans with 1 open project

GUEST: i dont know

GUEST: First start of NetBeans after update to 8.0.1

GUEST: ????? ?????????? ??????????? ??????????. ???? ????? ???????? ????????? ??????????????

GUEST: Dont know what to write here

GUEST: This error keeps occuring when ever I start the IDE. I have only been getting the error since applying the latest updates

GUEST: I Have No Idea.

GUEST: m

GUEST: problem occured on file save

GUEST: apenas iniciando a ide

GUEST: Enable to use Symfony autocompletion again! It's broken, why?

GUEST: unable to work for a while

GUEST: I simply started NetBeans and it analyzed my open projects.

GUEST: ???????? ?????????? ?????????? ? Linux Mint 17 KDE. ????? ?????????? ??????.

GUEST: .

GUEST: Restarted netbeans

GUEST: I've upgraded netbeans to 8,0,1
When I launch it, it gives me this exception everytime.
I could use all functionalities but I wouldn't like if something is broken.
Thank you.

GUEST: THis Error occurs when I open the NetBeans

GUEST: Just updated 55 updates.

jcamelis: I was trying to debug a php project.
The project framework is PrestaShop.

GUEST: Erro showed on initialization

GUEST: Opened netbeans and saw the error

GUEST: a

sweetPrincess: remove trailing space click

GUEST: Open NetBeans 8.0 with a few files left open (7 here).
Close only the starter page.
Check the update notifications.
Update it.
Restart the IDE.
NetBeans splash screen shows now 8.0.1.
After loading, this exception warning was visible.

GUEST: Use a custom code template

GUEST: Excecuted latest updates and restarted.

GUEST: <Please provide a description of the problem or the steps to reproduce>';

jomarsilio: error

abernaus: The error appears when I open NetBeans :-(

GUEST: Error

GUEST: ??? ????????

GUEST: to init netbeans app

GUEST: Windows deve que ser reiniciado por ploblema de ter sido desplugado cabo PS2 do mouse.

GUEST: Start netbeans with some php projects.

GUEST: Please review the error.

GUEST: update

GUEST: again, after update to 8.0.1 just opened up the first file nothing unusual

GUEST: Complete crash on Mac OS X 10.9.4, running on Macbook Pro, 8GB RAM

GUEST: NetBeans started

GUEST: ??

GUEST: At startup. Tried latest java 1.8.0.20 with same error.

ggruen: Updated IDE to 8.0.1, updated plugins.  Installer ran then re-launched NetBeans.  Shows in the dock (on MacOS 10.9) with the application name "Java".  The IDE kept running fine, but the notification baloon stated an exception had been thrown.

GUEST: This problem was while Netbeans scaned ma projects.

GUEST: opning application

GUEST: After update to 8.0.1

GUEST: Creating a project with existing files

GUEST: Nothing, I just started netbeans.

GUEST: aa

GUEST: Opened NetBeans, error occurred.

May or may not be a side-effect of this error, but line-highlighting colors that show up in the scrollbar area (such as 'red' for errors, 'orange' for searched text, etc) are not showing up =[

GUEST: This exception occurred the second time i self-upgraded Netbeans to 8.0.1 (linux).
Just after Netbeans start, without doing anything.

gameshas: Just opened a file

legitalk: launching netbeans after upgrade 8.0 => 8.0.1

GUEST: Problem occurred while starting Netbeans

GUEST: Erro ao carrgar IDE

GUEST: refactoring a class property name

GUEST: Error reported on start up

GUEST: <Please provide a description of the problem or the steps to reproduce>

begining the ide

GUEST: Updated system from 8.0 to 8.0.1

GUEST: start netbeans with two web (php) projet.

GUEST: it occoured after IDE being restarted

GUEST: slow

GUEST: program start up

vlki: Just after start

GUEST: Im having problem with debugging, only work first time

GUEST: ctrl+I -> open file

GUEST: Error on starting Netbeans

GUEST: ao abrir o beans surgiu esse erro.

GUEST: I just opened my project and started coding, after a few lines I saw a red ballon telling me an error occured.

GUEST: Nothing, it just occur when you start NetBeans. Windows8.1

GUEST: I have no idea what happends

GUEST: restarted netbeans

GUEST: Getting this error everytime Netbeans 8.0.1 starts.

GUEST: I didn't know

GUEST: Seems to happen right after scanning open projects when I click on the first page in the IDE

felipbou: Opening the program

GUEST: Update NetBeans from 8.0.0 to 8.0.1 version

GUEST: No problems occured because of this error

GUEST: As soon as i open netbeans

GUEST: just edit php source and tried to save it

GUEST: i just upgraded to 8.0.1 and started the app

GUEST: Just opening NetBeans

GUEST: Exception after Update to 8.0.1

GUEST: having "same background color for files from same project" enabled causes this error on startup, and when opening a new project that opens edit windows for recently opened files in that project.

GUEST: ??????

GUEST: I just updated NetBeans and this Exception started to occur.

GUEST: Just go to declaration from any files

GUEST: Sorry, not sure what caused the error, I probably noticed the notification of the exception long after it occured. Still, I hope the info is useful.

GUEST: on NB start

GUEST: I run an update of Netbeans 8.0, going to 8.0.1

GUEST: ??? ??????? ?????????, ????? ?????????? 8.0.1

GUEST: opened NetBeans with an previously opened project and opened files

GUEST: save file

GUEST: <Please provide a description of the problem or the steps to reproduce>

GUEST: No idea

webmasterUrbannus: Error

GUEST: starting up

GUEST: php project

trancer: I got this error after starting NetBeans.

GUEST: Just started up netbeans and the message appeared after a few seconds.

GUEST: error at program start up

GUEST: After update do 8.1

GUEST: silent error

GUEST: some problem with xdebug on netbeans for  php ?

GUEST: netbeans 8.0.1 with php

GUEST: <Please provide a description of the problem or the steps to reproduce>

While loading IDE with opened project

GUEST: Was trying to update NB8.0 to 8.0.1

xreload: Exception raised on netbeans start, no action required.

GUEST: Opened Netbeans after update 8.0 -> 8.0.1, after that i saw an unexpected notification.

GUEST: An error occured without any specific action from me

GUEST: Everytime I open up Netbeans and open a file other than the starting screen (f.e. *.php files)

GUEST: Starting up 8.0.1 for the first time

GUEST: Launching netbeans

GUEST: opened netbeans

GUEST: Program open.

GUEST: Please review error

GUEST: this problem ocurred when open php file

GUEST: error on start IDE

GUEST: Started Netbeans.

GUEST: <Please provide a description of the problem or the steps to reproduce>
No idea, it just appeared onstartup

GUEST: I restarted NetBeans because code completion stopped working for project where it worked well before auto-updating to 8.0.1.

GUEST: Nothing, just opened the browser to a project I've already been working on

GUEST: Wasn't doing anything. Loaded IDE and it was doing a (slow) project scan after a bunch of plugin updates (41)

GUEST: ?

GUEST: on start up

GUEST: Starting Netbeans.

GUEST: Opened NetBeans after updating plugins

GUEST: Updated netbeans 8 -> 8.01 now and restarted it

GUEST: doing a standard find/replace function

hl2ang: .

GUEST: Waiting for "Background scanning of projects"

GUEST: Netbeans 8.0.1 keeps crashing when I start it up - seems very unstable!!!!

GUEST: i  deleted project folder from disc, then started up the IDE

echterhoff: So no more code completion for me... :-(
Just updated to latest plugins. Gonna try if a fresh install will help me for now.

earnie: Starting the developer version with a PHP project open.

wernerm: No idea what caused the error, just opened Netbeans 8.0.1

GUEST: opened netbeans

webfox: Did only start NB 8.0.1 and thats it. Using OS X 10.10 Public Beta 2.

GUEST: Exception thrown when netbeans is started.

GUEST: 1. Startup Netbeans
2. Indicator "opening projects" shows progress
3. When at 17%, the exception occurs

Mr_Secunda: fucking exception which very disappointing

GUEST: NetBeans was upgarding itself to 8.0.1

GUEST: <??????? ???????? ???????? ??? ???? ??? ???????????????>.

GUEST: by the start of the program - when the files from project are opened (automatic from previous session)

GUEST: nose

GUEST: c

GUEST: Restarted Netbeans; was greeted with this error.

GUEST: I don't know what happened

GUEST: Error uccurs when starting NB 8.0.1

GUEST: Starting NetBeans and waiting for projects to load

GUEST: just installed updates and restarted netbeans

GUEST: netbeans start

wellic: After boot

GUEST: I don't know when happend

GUEST: no se

GUEST: just launched NetBeans 8.0.1

GUEST: Finished Updating to Netbeans 8.0.1 and got htis exception.

GUEST: <Please provide a description of the problem or the steps to reproduce>asdasd

GUEST: During usuage

GUEST: <Please provide a description of the problem or the steps to reproduce>

GUEST: (1)IDE?Update(8.0?8.0.1)
(2)8.0.1???
(3)8.0?????????

GUEST: When creating a new project

GUEST: ????

GUEST: S