<aside> 🕒 24/09/2021 by R3GEN - 7 minutes to read

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You might encounter a problem during the installation of a modpack within the FTB App where it won't let you play due to errors.

You click Play on the FTB App, and click Play on the Minecraft Launcher and suddenly you are left at something similar to this on your brand new, fresh install:

errors_combined.png

To solve this problem, we will need to install Forge. Forge is a platform modded Minecraft is built on and is crucial for launching the game. In this case, Forge did not get installed properly, so we will resort to installing it manually.

To find the version of Forge you need to install, you will need to navigate through the files of the FTB App.

Open the FTB App and navigate to the page of the problematic modpack and click Settings.

settings.png

Scroll down the settings page, and click Open Folder at the bottom.

open_folder.png

This will open a view of the files of the modpack in the Finder App. Head on, you will see a file called instance.json . Open it with a text editor, like TextEdit, and scroll to the bottom of it.

You will see a line containing the information about the modloader:

modloader.png

In this case, we see 1.16.5-forge-36.2.4 as the modloader. We can then understand that this is Forge for Minecraft 1.16.5 and it is the build 36.2.4. Note the information somewhere, like on TextEdit; we will use this shortly.

You will need to access the website for Forge, which you can do at: https://files.minecraftforge.net/net/minecraftforge/forge/

On the left side of the page, you will see a list of Forge versions. Since we noted 1.16.5 in the example from earlier, we will click it after expanding the tab.