I've installed eclipse photon on my new pc (with ubuntu 18). When i try to get it from the marketplace or from the link (http://download.eclipse.org/windowbuilder/WB/integration/4.8/) i get this error:
No repository found at http://download.eclipse.org/windowbuilder/WB/integration/4.8/.
I tried to install the previous version, but i get the "Eclipse running under 0" error when i try to open a java file with windowbuilder. How can i solve this?