IDE dies preloading caches

Hi! On several small-ish Haskell projects (that have been on intellij-haskell for some time) I am now experiencing out of memory errors whenever loading the project(s).

Steps to replicate

• Plugin v1.0.0-beta48
• IDEA 2019.1.3 with a few other plugins
• JRE 1.8
• Stack 1.9.3, resolver lts-12.26 (but a few others too)
• A smallish Hakyll project
• Load the project
• Wait for Busy with preloading caches

Expected

Builds and caching finishes without error

Actual

GUI performance starts decreasing fast and IDEA complains of out of heap space. Have tried twice increasing (currently at 1.6GB).

Notes

I’ve tried reimporting the project a few times, and manually deleting a few caches. On a separate machine, on beta-46, this doesn’t seem to be happening (have decided not to upgrade though so hard to tell if it’s related).

[rikvdkleij]

Should be fixed in beta49, https://github.com/rikvdkleij/intellij-haskell/releases/tag/v1.0.0-beta49

[rikvdkleij]

Thanks for your minimal example. I will take a look asap.