
FileZilla (and some other FTP clients) will fail to upload a few required library files. Note 2: If you're using FileZilla, make sure that the "Failed transfers" queue at the bottom of the client has nothing in it.

Note: If you get any "Essential library files missing" errors upon startup, you might need to upload the /libraries directory again. We also provide setup for Cauldron, Spigot, and Craftbukkit latest versions. You can always submit a technical support ticket day or night and request a mod pack be setup for you for free. You can start the server now and everything should work fine, check your console for errors.Look for the "JAR File" field and type the name of the file that we changed earlier to 'custom.jar' then click the Save button at the bottom of the page. Go into the panel and click on your servers manage page. Now we'll need to change the startup file which the control panel looks for while starting.Next connect to your FTP using an FTP client of your preference using the login details in your Control Panel (Files > FTP File Access).

Usually mod pack server Jars are named either "forge-XXXX.jar" or "ftbserver-XXXX.jar".
