Hi all, I have Emoncms running on a raspberry pi zero, but can’t seem to get my feeds/visualizations running properly. Whenever I open a visualization, I get the following error: Message: Uncaught TypeError: Cannot read property '0' of undefined Route: vis/realtime?feedid=28&colour=edc240&kw=0&emb…

[image] ajw85: I have Emoncms running on a raspberry pi zero How did you install it? You are missing the graph module - it is installed separately. If you followed the install guide there is a bit at the bottom about the additional modules to be installed. We are moving to a scripted insta…

I installed the graph module and that did not help. I installed emoncms based on this emoncms/readme.md at master · emoncms/emoncms · GitHub but changed all the packages to the right ones out of the raspberry package system. Whenever I create a feed, two new files are added in my home/data/phpfina…

Is there anything in the Emoncms log? Change the log level in settings.ini or settings.php if it exists. Which base settings file did you use? I also note you have not installed feedwriter and service-runner. It is possible Emoncms is sending the data to feedwriter but it isn’t actually going anyw…

Does EmonScript support pi zero w? " Compatible with Raspberry Pi 3, 3B+ & 4 " I’d love to help out and test I’ll check on the feedwriter and service-runner and follow up. Thank you!

We havent tested it on Pi Zero, but I think it should work. Are you using latest Rasbian Buster lite on the Pi Zero?

Yes, I am using the latest Rasbian Buster Lite on my Pi Zero W. Also, I ‘enabled’ service-runner and feedwriter and everything is working!

[image] ajw85: Yes, I am using the latest Rasbian Buster Lite on my Pi Zero W. Ok great! It would be really useful if you did not mind starting a fresh / or new SD card? and installing using the EmonScripts approach, to confirm it works on Pi Zero. It will give you a build with everything in …

No that is fine, I just started collecting data so I don’t have any issues with starting over. I will format the SD card and re flash the base Lite image and try out the EmonScripts on it tomorrow.

Reporting this same issue I believe. Visualizations run until the time on the horizontal axis moves so if I leave it at the default zoom it’s fine. If I set the zoom to 1 minute it starts failing with the above posted error. This is on a Raspberry Pi 3 installed using the script on Buster lite

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Visualization: Cannot read property '0' of undefined

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