I've been busy creating my own modpack by combining all of the mods I can get my hands on from FTB here and running a server with it. I've encountered a few problems, and while I couldn't seem to find any help here, I have found solutions to many of them. I'll list them here so others can see them.
General:
There are a lot of mods in this pack. Some of them seem to cause massive lag. This was severe especially when the server was generating new chunks.
Partial Solution: Installing Java 7 64-bit update 10 (Java 64 7u10) helped a whole lot. This of course won't help those who only have 32-bit systems (x86).
Thaumcraft 3:
I've had an issue with Thaumcraft 3 not saving properly when Windows update reboots the system. This results in all thaum nodes and/or player research disappearing.
Workaround: Force a save once every evening, then copy the world folder to another place just in case.
Mystcraft:
In many versions, Mystcraft will either crash the server or client, or not allow clients to connect due to item mismatches.
Solution: In the server config folder is a file "mystcraft.cfg" Distribute this file to every client with your mod pack and make sure they put it in the right place. This file autogenerated with different item IDs at different times for some reason and causes problems. Also make sure you are running with the most updated version of FML. (The most updated version of your server should be fine)
Advanced Solar Panels/Compact Solar Panels:
These 2 mods conflict placing their items at the same item ID by default.
Workaround 1: Remove one or the other. They really are duplicates. Advanced is Gregtech solar panels for IC2. Compact are regular IC2 solar panels.
Workaround 2: If you must use both go into the config folder and look for "AdvancedSolarPanel.cfg" In it you will find the itemID for Gregtech defaulted to 650. Change this to a free ID (649 worked for me) Now you can have both at once for more options.
Non-FTB Mod related:
Optifine:
Optifine will cause bad block updates constantly if you choose "Multi-Core" from the "Chunk-Loading" setting. This leaves chunks flickering in and out of existance whenever trees/crops grow or mining occurs. Default or Smooth works fine.
Unresolved issues:
Many mods are reporting mundane things to STDERR and SEVERE logs. This makes it very hard to track down modpack problems when one does arise. I know that modders like to be able to debug their own code easier, but hopefully they will clean this up soon.
General:
There are a lot of mods in this pack. Some of them seem to cause massive lag. This was severe especially when the server was generating new chunks.
Partial Solution: Installing Java 7 64-bit update 10 (Java 64 7u10) helped a whole lot. This of course won't help those who only have 32-bit systems (x86).
Thaumcraft 3:
I've had an issue with Thaumcraft 3 not saving properly when Windows update reboots the system. This results in all thaum nodes and/or player research disappearing.
Workaround: Force a save once every evening, then copy the world folder to another place just in case.
Mystcraft:
In many versions, Mystcraft will either crash the server or client, or not allow clients to connect due to item mismatches.
Solution: In the server config folder is a file "mystcraft.cfg" Distribute this file to every client with your mod pack and make sure they put it in the right place. This file autogenerated with different item IDs at different times for some reason and causes problems. Also make sure you are running with the most updated version of FML. (The most updated version of your server should be fine)
Advanced Solar Panels/Compact Solar Panels:
These 2 mods conflict placing their items at the same item ID by default.
Workaround 1: Remove one or the other. They really are duplicates. Advanced is Gregtech solar panels for IC2. Compact are regular IC2 solar panels.
Workaround 2: If you must use both go into the config folder and look for "AdvancedSolarPanel.cfg" In it you will find the itemID for Gregtech defaulted to 650. Change this to a free ID (649 worked for me) Now you can have both at once for more options.
Non-FTB Mod related:
Optifine:
Optifine will cause bad block updates constantly if you choose "Multi-Core" from the "Chunk-Loading" setting. This leaves chunks flickering in and out of existance whenever trees/crops grow or mining occurs. Default or Smooth works fine.
Unresolved issues:
Many mods are reporting mundane things to STDERR and SEVERE logs. This makes it very hard to track down modpack problems when one does arise. I know that modders like to be able to debug their own code easier, but hopefully they will clean this up soon.
