# JSerialCom No Module Named fazecast

**URL:** <https://forum.inductiveautomation.com/t/jserialcom-no-module-named-fazecast/111659>\
**Category:** Ignition\
**Created:** [October 22, 2025, 5:49pm UTC](https://forum.inductiveautomation.com/t/jserialcom-no-module-named-fazecast/111659 "2025-10-22T17:49:22Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![djones](https://avatars.discourse-cdn.com/v4/letter/d/43a26b/32.png) [@djones](https://forum.inductiveautomation.com/u/djones)\
**Post date:** [October 22, 2025, 5:49pm UTC](https://forum.inductiveautomation.com/t/jserialcom-no-module-named-fazecast/111659/1 "2025-10-22T17:49:22Z")

</div>

Am I missing something basic

I have the following script and I keep getting a “No Module named fazecast” error

```python
from com.fazecast.jSerialComm import SerialPort

ports = list(SerialPort.getCommPorts())

```

---

<div class="post-metadata">

**Author:** ![ryan.white](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan.white/32/73193_2.png) [@ryan.white](https://forum.inductiveautomation.com/u/ryan.white)\
**Post date:** [October 22, 2025, 5:56pm UTC](https://forum.inductiveautomation.com/t/jserialcom-no-module-named-fazecast/111659/2 "2025-10-22T17:56:45Z")

</div>

Are you sure that the fazecast library is included in Ignition's base java library? Or if you are supplying the library `.jar` file, has it been placed in the correct location, and the gateway and designer have been restarted?

---

<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [October 23, 2025, 12:03am UTC](https://forum.inductiveautomation.com/t/jserialcom-no-module-named-fazecast/111659/3 "2025-10-23T00:03:45Z")

</div>

What version of Ignition are you using?