Error while burning bootloader for Spresense board

Development Tools Uploading
1

Hello!

I've reviewed five previous threads on the same topic but could not find a working resolution to this error in my environment. I cannot upload any sketch either and I've posted the issue at the Spresense GitHub site for that. Apologies if this issue is considered a duplicate entry.

The error message is:

Arduino: 1.8.19 (Linux), Board: "Spresense, MainCore, 768 KB (Default), Disabled, 115200"

java.lang.NullPointerException
	at cc.arduino.packages.uploaders.SerialUploader.burnBootloader(SerialUploader.java:329)
	at processing.app.Editor.lambda$handleBurnBootloader$61(Editor.java:2385)
	at java.lang.Thread.run(Thread.java:748)
Error while burning bootloader.

Is this a newbie user error? Any guidance will be sincerely appreciated. Thanks.

Arduino IDE: 1.8.19 (under Ubuntu 22.04)
Board: Spresense
Debug: Disabled
Core: MainCore
Memory: 768 KB (Default)
UploadSpeed: 500000
Port: /dev/ttyUSB0 (Spresense)
Programmer: Spresense Firmware Updater

2

It may help to check this checkbox in Arduino Preferences:
Show verbose output during: [ ]compilation [X]upload

3

Thanks, @johnwasser.

Kind regards.

4

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