Simpletime Cannot read property 'nodes' of null

General
1

I had to reinstall my Homematic-IP CCU3 from my backup.

Node-Red is missing two modules.

When installing node-red-contrib-simpletime I get the error:
Cannot read property 'nodes' of null

What could be the reason?

2

Can you show us where you are seeing that error please?

3
  1. I use the Palette to install modules
  2. I click install in the palette list where I searched for simpletime (only 1 result)
  3. I confirm to install
  4. the message shows up in the screen to tell me something went wrong! When I open the option "view log" nothing special is shown there.

Anyhow, the module is not installed!

4

What version of nodejs are you using?

5

Since I am working on a homematic-ip ccu3, unfortunately a very old one. There is no update for this: v14.16.0

But - the system was running before the restore.

I proably need a way to install the module simpletime working with this "old" version of node.js.

Unfortunately I am not able to find out what version of simpletime was installed before the restore. The backup does not save the directory node_modules - unfortunately.

The backup routine is one provided by the ccu3-environment.

6

Is there a package-lock.json in the backup? That contains the version numbers of installed nodes.

7

In fact, if you restore package.json and package-lock.json from the backup and remove the node_modules folder, then go into your .node-red folder (or wherever the flows file is) and run
npm install
it will install all the previous nodes at the versions that you had previously.
Then restart node-red.

1 Like
8

@Colin thanks for the hint. I will look into the backup and try to follow your suggestion. I will come back with update later.

9

Just noting that you don't actually need a custom node for this.

You can use the MomentJS library in a change node by using JSONata.

In a function node, you could reference Node.JS's INTL functions.