Hello nice people, I'm trying to integrate simple chat functionality to a web app I'm working on and I found this nice widget and wanted to use it because it seemed just about what I'm looking for https://appstore.home.mendix.com/link/app/1442/. But when I installed it to the working project I got a lot of errors because some layouts don't exist anymore in the new atlas UI, anyways they were only naming errors so these I could solve. The chatter widget uses sessions to persist messeges but when I tried to run it I got this error "Chatter: An error occurred while retrieving chat session (E1026)". Does anyone have experience working with Chatter? Or does anyone knows about an alternative that I could use? Thanks in advance!
I was able to reproduce your error. Make sure the user role that you are allowing to send message has the "ChatUser" module role from the Chatter module.
Once I added that module role the error went away and I was able to send messages to other users that were logged in with this module role.
To test I opened the application in two incognito browser windows. I logged in with two different users that had user roles with the ChatUser module role, and I was able to send messages between the two users.
Also make sure your project security level is set to at least demo Prototype/demo.