Node engine update

Hello,

I was working with NodeRED and specifically the preinstalled OPCUA package. Found a couple of bugs there which they fixed. Now I need to update the package to test it. When I've updated the package, I did receive an error saying that I require version of "node>=15". So I installed version 16.19.1 using npm and NodeRED server does not start anymore.

Could you, please, walk me though the process of "node" package update or provide me with a link describing said thing?

Cheers, Jiri

Hi kubesji,

I guess that the versions of your components like NodeRED and the OPCUA package you updated and Node are no longer compatible with each other.

In order to be able to help you, we need the following additional information:

• Which IOT2050 image are you using?
• Have you also updated NodeRED yourself or which version (node-red -v) do you currently have installed?
• What error messages do you get after you stop NodeRED with sudo systemctl stop nodered.service and then manually start a new instance in the terminal with node-red start?

We look forward to solving your problems together.

BR

Hello,

cheers for fast reply. Currently, node-red commands return segmentation fault. I'm using Example Image v1.2.2 and node-red shipped with this image.

The newly installed version of node is 14.21.3. 

Jiri

Hey,

as you mentioned in the first post, your updated blocks require a node version > 15. I assume that you currently have these blocks active in one of your flows and that this is causing NodeRED to fail on startup.

So please try to start Node-RED without starting the flows. This allows you to open the faulty flow in the editor and make changes without running anything. When you deploy your changes, the flows are then started: 

node-red --safe

Following these instructions, it is possible to update Node and NodeRED. Please note that newer versions of Node and NodeRED can have a significant impact on all packages you have installed so far, and you may encounter difficulties elsewhere in favour of the more recent OCPUA modules.

BR

Still getting segmantation fault even with --safe.

I do not mind reflashing my sd card with a clean image v1.2.2 to restore. What I need help with is how to update "node" without breaking anything.

JK

Hi Kubesji,

we'll need to test it on our side before providing a solution. Can you please confirm which version of the OPCUA package you're planning to use? Is it the latest 0.2.303 version?

Thanks and regards

Hi apastore,

yes, the latest one. It was 0.2.302 when I check last time but if a new increment is available, I'll go with that one.

Cheers.

Cheers, it works now. The only tiny downside is that NodeRED does not start on startup but that should be an easy fix.

Cheers again,

Jiri