Nov 19, 2012 Hi all, I have, well, was running FTB on my mac laptop running ox x 10.5.8 and it was running up till today. Now when i try to load the game i get a message in Terminal 'Exception in thread 'main' java.lang.UnsupportedClassVersionError: Bad version number in.class file'. Then it gives me a bunch of stuff that starts with the word 'Jave'. Now i know I haven't updated, or done anything at all. Feed The Beast - Direct download. Feed The Beast - Direct Download. Direct download allows user to download launcher directly without any 3rd party website. We're sorry but ftb-web doesn't work properly without JavaScript enabled. Please enable it to continue.
Before Installing..
In this tutorial, you will get to install your desired Feed the Beast modpack on a server.
You will be using FTP to upload/download files. Please refer to this tutorial if you do not know how to transfer files via FTP.
How to: FTP file access - https://ggservers.com/billing/knowledgebase/13/How-to-FTP-File-Access.html
Let's Start!
If you want to keep your world or keep any of the current server files, download whatever files you wish to keep to your personal computer via FTP.
Step 1.
Download the Feed the Beast Launcher: http://www.feed-the-beast.com/
Step 2.
Open the launcher and select the modpack you wish to play. Click Download Server.
Step 3.
Extract the downloaded zip file, then open your FTP client. Connect to your server, and delete the ServerStart.bat or ServerStart.sh as you do not need them.
Upload the FTB Server jar. Rename the jarfile to either 'permgen.jar' or 'ftb.jar' and then upload. Set your server to run on that jar. ( Use the following guide for a brief summery on how to upload and set your server jar: https://ggservers.com/billing/knowledgebase/3/How-to-Upload-and-use-your-own-JAR.html Remember to press SAVE. )
Feed The Beast Minecraft
Step 4.
Upload Libraries.
If you are running a FTB modpack minecraft version 1.5.2 or earlier, upload ALL sub folders to the root of your server (mods, coremods, and config folders).
If you are running a FTB modpack minecraft version 1.6.4 or later, upload the 'libraries' folder into the 'jar' folder (where your ftb.jar server jar is located), and other sub folders to the root of your server (mods and config folders).
Step 5.
After uploading all server files, start your server.
If you have any questions or need help, feel free to submit a ticket. If you have the Modpack Installation and Support add-on, we can help you install the modpack.
Feed The Beast Download Minecraft