BuildTools download, needs to be fixed

[iMelsom]

did you fix your java problem?
You need to upgrade your java: Upgrading to Java 16 from the MineOS Turnkey ISO - #10 by ctabone

Also, Forge made some changes to who they serve files, (they monetized them) so you also need to update your WebUI:

Forge Server 1.12.2 MineOS

Hi Forge has changed how they serve their downloads, and that impacted availability in MineOS. There is a fix underway: [SOLUTION IN PROGRESS] Can't download forge profiles - #11 by jagdtigger After installing MineOS you need to update the WebUI to get the latest commit: Updating the Webui - MineOS Wiki This is beacuse the premade ISO’s do not nescestarily include the very latest updates and commits.