OpenEnergyMonitor Community

Message: Error: Could not save Dashboard. Dashboard not updated

Hi All
I seem to be getting the below error message when trying to save a dashboard.
It seems to be caused by creating duplicate “Feed Values”

For anybody who runs into this problem in the future, I was hitting the SQL limit on the table that the dashboard saves too. The solution was to change the SQL table properties from TEXT to LONGTEXT

I think @Trystan needs to know about this.

My dashboard is as below, I take it that I must have the most complex dashboard then :joy:

Hi Dave, unfortunately I am not very skilled with SQL, but have the error you described on a dashboard, can you create a step by step guide on how I can change the SQL table properties from TEXT to LONGTEXT. Thanks for your efforts.

here are the steps I have taken today:

  1. sudo mysql -u root -p
  2. show databases;
  3. use emoncms;
  4. show fields from dashboard;
  5. ALTER TABLE dashboard MODIFY content LONGTEXT;
  6. show fields from dashboard;
  7. quit
    hope it is so correct

Hi All!
Sorry for my bad English.
I have updated the emoncms I have on a linux web hosting.
It worked fine for a long time, but with this update, I can’t save editing dashboards when they have graphic / visualisation elements. Works fine with all widgets, text, containers, etc., except visualization elements (graphs). This error appears when I try to save the dashboard:


This happens whether I use “branch master” or “branch stable”.
I’ve already tried doing the above procedure, change the SQL table properties from TEXT to LONGTEXT, but it didn’t work.

If possible, I would be very grateful if someone could guide me, where should I start a screening route.

Additional data:

Version 10.4
Administration | App v2.2.7 | Dashboard v2.0.10 | EventProcesses | Feed | Graph v2.1.0 | Input | CoreProcess | Schedule | Time | User | Visualisation

Linux 3.10.0-962.3.2.lve1.5.52.el7.x86_64

HTTP Server
Apache HTTP/1.0 80

Version 10.2.37-MariaDB-cll-lve
Host localhost (

REDIS Version
Redis Server 3.2.12
PHP Redis 5.3.2

PHP Version
7.4.16 (Zend Version 3.4.0)

The solution for me was to change the SQL table properties from TEXT to LONGTEXT