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My Arduino IDE (ver 1.8.12 on Win10) crashes when I launch it. Running the arduino_debug.exe I get this error message.

C:\Program Files (x86)\Arduino>arduino_debug.exe
Set log4j store directory C:\Users\volke\AppData\Local\Arduino15
Loading configuration...
Initializing packages...
java.lang.NullPointerException
        at cc.arduino.contributions.packages.ContributionsIndexer.parseIndex(ContributionsIndexer.java:134)
        at processing.app.BaseNoGui.initPackages(BaseNoGui.java:483)
        at processing.app.Base.<init>(Base.java:273)
        at processing.app.Base.main(Base.java:150)

C:\Program Files (x86)\Arduino>

Any solutions? I've tried to delete the config files package_index.json and package_esp32_index.json without any luck.

gre_gor
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Volker Petersen
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    Same thing here, I think it has something to do with a new package or something. It started today and yes I spend the whole day trying to fix it. ESP8266 works if you install it as git instead of using boards manager. Problem is vscode extension will not work! – Nathan Almeida Jun 09 '20 at 20:44
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    There is a Github issues about this already here: https://github.com/arduino/Arduino/issues/10332 – pfeigl Jun 09 '20 at 21:05
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    Seems to be a problem wih packages index, because I've installed older versions that were working on Windows 10, cleaning all the Arduino folders, and all failed. I've also tested the Arduino IDE Beta and seems to work, because at least this version ignores the index errors. – Daniel Carrasco Marín Jun 09 '20 at 21:07
  • It's happening in Linux (Ubuntu 16.04) as well. – Ubdus Samad Jun 10 '20 at 02:10
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    @TomServo and other close voters: This is clearly the _IDE_ crashing, not user code. Perhaps the IDE's developers could use advice on how to prevent NPEs in their code, but that's not going to help the IDE's _users_. – Ryan M Jun 10 '20 at 02:12
  • Also crashing for MAC – NSjonas Jun 10 '20 at 02:52
  • It was working fine on my machine as well as two other machine running on Windows 10. I got windows update on two machine and after that I see that on both machine it stopped working. Looks like something is wrong with IDE after this windows update possibly as it works on windows 7 systems. – HallMark Jun 10 '20 at 06:57
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    it was a temporary problem. to recover see https://github.com/arduino/Arduino/issues/10341#issuecomment-641836099 – Juraj Jun 10 '20 at 10:20
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    Why did you accept that non relevant dupe? – gre_gor Jun 10 '20 at 20:03

5 Answers5

6

I've got the same issue - the nightly build seems to work

https://www.arduino.cc/download.php?f=/arduino-nightly-windows.zip

https://www.arduino.cc/en/Main/Software

Fraser G
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4

I'm on Windows 10 having exactly this issue (same arduino_debug log). I tried uninstalling Arduino IDE and then reinstalling it from executable installer; it worked fine until I opened the Board manager: the problem recurs.

After installing the beta version (arduino beta1.9-BUILD-119), I'm not having any problem.

Roberto
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0

Just use the latest Arduino IDE Beta Version. It is working now, ignoring that issue. I'm using the ESP8266 board and it's running okay.

Enrique Ruvalcaba
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0

The beta version 1.9 worked for me. https://www.arduino.cc/en/Main/Software

paul dan
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    Worked for me as well. Hopefully, the regular build gets fixed as well. Wasted a couple of hours on this. – Kevin M. Jun 10 '20 at 14:10
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It also happens on Manjaro linux. In my case removing the folder .arduino15 solves the issue, but I have to remove it every time I open arduino IDE

rm -rf ~/.arduino15/

Win10 folder location: 

%HOMEPATH%\AppData\Local
Saeed
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sergi
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    Please refrain form posting answers if it's not a well functioning solution, the answer you gave is more of a hack and the OP has in a way already done this. Plus it won't work if you're compiling for other boards like esp32 etc. So, Rather add this as a comment to the question. Thank you :). – Ubdus Samad Jun 10 '20 at 02:14