IMPORTANT!: For this mod to work you MUST to follow these steps listed down below.
1. Download MrCrayfish's device mod Here. (Extra-Ons 1.0 - 4.0 only work with Device Mod version 1.2.1. Extra-Ons version 5.0 works with 1.3.1. Extra-Ons 5.3 works with 0.4.0 - 0.4.1.)
2. go to http://www.javazoom.net/jlgui/api.html and download the 3.0 version (If you are using Extra-Ons version 5.1 or higher steps 2, 3, and 4 can be skipped)
3. open the .zip file and open the folder inside and then go to the lib folder
4. all the .jar files in there need to be placed in your mods folder
Discord: https://discord.gg/pcYE7Ej
F.A.Q:
Q: Please update the mod to Device mod version [SOME VERSION HERE].
A: Extra-Ons is currently (as of 2/10/22) updated to the latest version of the Device mod. As the device mod is now abandon, chances are low it will be updated again
Q: So wait. Is this mod abandon?
A: Not exactly. New features are not guaranteed to come but bug-fixes can be submitted in the discord (although, its not guaranteed they will be fixed right away if ever).