<![CDATA[libjssc on ARM-- jssc-2.8.0.jar needs to be replaced]]>Re: RequestError: Unable to load /data_source_properties.shtm?typeId=MODBUS_IP status: 500

This was an issue on earlier Mangos, but the new 3.6 upgrade overwrites the jssc-2.8.0.jar with the version that doesn't work on ARM. I'm using ARM for my data aquisition devices, and if you do the 3.6 upgrade it will re-install the nonworking jssc-2.8.0.jar file. So, you'll need to do what was suggested in Topic 4106 again:

To whit:

apt-get install libjssc-java

then

cp /usr/share/java/jssc-2.8.0.jar /opt/mango/lib

Otherwise, you get error 500's when trying to edit a data source, and your serial comms won't work on the ARM platform.

]]>https://forum.mango-os.com/topic/4264/libjssc-on-arm-jssc-2-8-0-jar-needs-to-be-replacedRSS for NodeWed, 17 Jun 2026 03:43:08 GMTTue, 25 Jun 2019 05:46:08 GMT60<![CDATA[Reply to libjssc on ARM-- jssc-2.8.0.jar needs to be replaced on Thu, 27 Jun 2019 17:15:09 GMT]]>Hi Turbo,

That's interesting, that's a 32 bit ARM device this time. Can you post the stack trace that was accompanying the 500 error so we can see if it's the same as the referenced thread?

]]>https://forum.mango-os.com/post/22543https://forum.mango-os.com/post/22543Thu, 27 Jun 2019 17:15:09 GMT<![CDATA[Reply to libjssc on ARM-- jssc-2.8.0.jar needs to be replaced on Thu, 27 Jun 2019 04:04:09 GMT]]>I believe you're right:

I'm running with with IOT-GATE-iMX7 from CompuLab:
https://www.compulab.com/products/iot-gateways/iot-gate-imx7-nxp-i-mx-7-internet-of-things-gateway/

This is running an NXP i.MX7 CPU, dual-core Cortex-A7

uname -a shows this as:

Linux DMME_Haynesville 4.9.11-cl-som-imx7-5.1 #10 SMP PREEMPT Mon Sep 3 19:19:22 IDT 2018 armv7l GNU/Linux

]]>https://forum.mango-os.com/post/22535https://forum.mango-os.com/post/22535Thu, 27 Jun 2019 04:04:09 GMT<![CDATA[Reply to libjssc on ARM-- jssc-2.8.0.jar needs to be replaced on Wed, 26 Jun 2019 18:13:50 GMT]]>@Turbo what hardware are you running on? It would be helpful to know what SoC it is. Also the OS.

]]>https://forum.mango-os.com/post/22510https://forum.mango-os.com/post/22510Wed, 26 Jun 2019 18:13:50 GMT<![CDATA[Reply to libjssc on ARM-- jssc-2.8.0.jar needs to be replaced on Tue, 25 Jun 2019 07:27:48 GMT]]>The MangoES's are also running on an ARM chipset so it would be worth noting what hardware and OS you are running. From reading the linked thread this seems to be an issue with 64bit kernels.

]]>https://forum.mango-os.com/post/22470https://forum.mango-os.com/post/22470Tue, 25 Jun 2019 07:27:48 GMT