Please make sure you have allocated 3GB-4GB to the launcher, and are running Java 8! If that does not resolve your issue, visit our Discord and we will try to help you.
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Type in the modpack name (Galaxy-Craft Outdated 1.5.2) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Galaxy-Craft Outdated 1.5.2 from the list on the left. The launcher will handle everything else!
Please make sure you have allocated 3GB-4GB to the launcher, and are running Java 8! If that does not resolve your issue, visit our Discord and we will try to help you.