FTB Modpack Cannot Install

[Bovive]

Installing a modpack from FTB will not run because the install scripts expects the -force flag and that is unable to be set (best I can tell. A very detailed documentation of the error was opened by someone else on FTB Github: [Bug]: Install direwolf20 1.21 server on AMP · Issue #8 · FTBTeam/FTB-Server-Installer · GitHub

When the install script tries to run in AMP this is the output:

Install directory is not empty, installing the modpack may cause issues

To force install use the -force flag

[ThePotatoKing]

Setting Up A Modded Java Minecraft Server

Preamble Minecraft is a bit notorious for being difficult to mod, given there’s oodles of different modloaders and versions to work with, there’s edge cases galore. If you’re new to the Minecraft modding scene and you’d like to know more about each modding platform and how they differ, check out this post here. 0. Create a new Minecraft Java Instance in AMP Easy as that, press the Create Instance button, then select Minecraft Java Edition from the drop-down. Feel free to use an existing instan…

[Bovive]

@Bovive

force

That is nice information but I know how to install it manually. This is specifically that the install script needs the -force flag.

[ThePotatoKing]

Yes, to get around that you delete all the files in the directory, as the guide mentions

[Bovive]

I appreciate the information, it is very thorough. Hopefully they can fix the bug.

[ThePotatoKing]

From the commit messages it’s already fixed in the dev stream, just need to wait for the next AMP update