Eclipse Marketplace Download/Install of Sirius 7.4 fails

[ThomasCinatl]

Hi,

i am new to Sirius Web DSM but i want to evaluate it for some purpose. And therefore i need to create my own Domain Model.

Anyhow as i understand i need Ecore + Sirius Installed within Eclipse Marketplace to create my own Domain Model which i than can use in the SiriusWeb app here in this Git.
I build and installed already Sirius-web and could view it in my local browser ( after a lot of problems but solve by ChatGPT else i already had given up the Idea with this App already , because it looks like nobody has ever testet it to install it in debian !)

Ok so far sirius-web looks like working but Sirius Installation in Eclipse not. The Error i got was

The following solutions are not available: Sirius 7.4 (id=org.eclipse.sirius.sample.feature.group, site=https://download.eclipse.org/sirius/updates/releases/7.4.6/2023-03/)

Maybe i am wrong but as i understand i need it to create a diagram Model based on the EMF Model i created.

Any Idea how i can solve it ?
Thanks br

[ThomasCinatl]

My Question was outdated. Sry
Problem was that the Postgres was not fully installed i think so i cant see the Studio and thought that only the Projects are there shown. I found the new Videos from Obeo ( thanks for that ). I think its now more clear how to work with it.
I tried to close it but it looks like is not possible for me.