# Why do I get a NullPointerException

**URL:** <https://discourse.processing.org/t/why-do-i-get-a-nullpointerexception/35711>\
**Category:** Electronics (Arduino, etc.)\
**Created:** [March 13, 2022, 4:28pm UTC](https://discourse.processing.org/t/why-do-i-get-a-nullpointerexception/35711 "2022-03-13T16:28:37Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Chrisir](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/chrisir/32/45_2.png) [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Post date:** [March 13, 2022, 4:36pm UTC](https://discourse.processing.org/t/why-do-i-get-a-nullpointerexception/35711/2 "2022-03-13T16:36:25Z")

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Check kll’s post here: [Unable to receive serial data from Arduino - #3 by kll](https://discourse.processing.org/t/unable-to-receive-serial-data-from-arduino/14100/3)

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