# Nrjavaserial upgrade causes "Serial Error: Port /dev/ttyACM0 does not exist"

**URL:** <https://community.openhab.org/t/nrjavaserial-upgrade-causes-serial-error-port-dev-ttyacm0-does-not-exist/18783>\
**Category:** Runtime\
**Created:** [December 26, 2016, 1:42am UTC](https://community.openhab.org/t/nrjavaserial-upgrade-causes-serial-error-port-dev-ttyacm0-does-not-exist/18783 "2016-12-26T01:42:14Z")\
**Posts on this page:** 1\
**Showing post:** 29

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**Author:** ![erland\_lestander](https://community.openhab.org/letter_avatar_proxy/v4/letter/e/dec6dc/32.png) [@erland\_lestander](https://community.openhab.org/u/erland_lestander)\
**Post date:** [December 27, 2016, 12:39pm UTC](https://community.openhab.org/t/nrjavaserial-upgrade-causes-serial-error-port-dev-ttyacm0-does-not-exist/18783/29 "2016-12-27T12:39:19Z")

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Downloaded latest package via apt-get and can confirm that I no longer get Not Found .  
Thanks!!

> [@Install openhab2 via apt-get error](https://community.openhab.org/t/install-openhab2-via-apt-get-error/18855/5):
>
> The package seems to be updated: Fetched 49.4 MB in 1min 45s (467 kB/s) (Reading database ... 82084 files and directories currently installed.) Preparing to replace openhab2-online 2.0.0~20161226183012 (using .../openhab2-online\_2.0.0~20161227112533\_all.deb) ... Unpacking replacement openhab2-online ... Setting up openhab2-online (2.0.0~20161227112533) ... Now, time to test zwave and /dev/ttyACM0 santa , please give me a late christmas gift! Edit: So far so good! No 'Not Found error!"

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_[View the full topic](https://community.openhab.org/t/nrjavaserial-upgrade-causes-serial-error-port-dev-ttyacm0-does-not-exist/18783)._