Just trying to set up a new Ubuntu 18.04 Forge Eclipse modding environment, having some problems.
This is a new ubuntu 18.04 installation. No real troubles (have a little password hiccup to fix, but doesn't seem relevant).
Installed jdk "1.8.0_211", seems fine.
Downloaded Forge (1.8.9 - 184.108.40.2062, mdk). Installation seemed to go fine (gradlew setupDecompWorkspace eclipse).
Downloaded / installed eclipse (2019 03 / 4.11.0) - seemed to go fine.
When I open the example mod in eclipse and push run (green button), minecraft opens and the forge loading stuff runs for a while then the whole system freezes.
update: maybe a it's a problem with the graphics driver on the new installation (I'm using an nvidia driver on the other installation).
used eclipse 2018 09 and jvm reported the following when I tried to run examplemod:
java: ../nouveau/pushbuf.c:723: nouveau_pushbuf_data: Assertion `kref' failed.
update: problem fixed by installing nvdia drivers, it's a problem with the nouvea driver.
update: I think it might be a problem with this version of eclipse not playing nicely (at least as I've installed it) with this version of forge.
On another installation, using eclipse 2018 09, all working fine. Hmmm.