# Modbus1 not working on build #675

**URL:** <https://community.openhab.org/t/modbus1-not-working-on-build-675/18865>\
**Category:** Bindings\
**Created:** [December 27, 2016, 12:30pm UTC](https://community.openhab.org/t/modbus1-not-working-on-build-675/18865 "2016-12-27T12:30:12Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![rossko57](https://community.openhab.org/user_avatar/community.openhab.org/rossko57/32/70263_2.png) [@rossko57](https://community.openhab.org/u/rossko57)\
**Post date:** [December 27, 2016, 2:11pm UTC](https://community.openhab.org/t/modbus1-not-working-on-build-675/18865/2 "2016-12-27T14:11:20Z")

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_Possibly_ connected with serial library issues?

> [@Nrjavaserial upgrade causes "Serial Error: Port /dev/ttyACM0 does not exist"](https://community.openhab.org/t/nrjavaserial-upgrade-causes-serial-error-port-dev-ttyacm0-does-not-exist/18783/28):
>
> All, as this serial lib upgrade seems to cause more issues than it solves, I have just reverted the commit again (see [here](https://github.com/openhab/openhab-core/pull/102)). The next distro build will come with the old lib again, so that the issue here should go away.

I don’t know enough \*nix to comment

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