WORKING I worked on this for hours making sure it worked, a few mods were sacrificed to make it work. It no longer has Eternal Frost Or Player API.
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 (Diamond Dimensions Fixed) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Diamond Dimensions Fixed from the list on the left. The launcher will handle everything else!