Update Bug

[1704David5]

Title: Update Bug

Version: 2.1.1

OS: Windows 7, 64-bit

Java Version: i dont know

Description of Problem:

i logged on to technic pack launcher and it said "new update available" so i clicked yes, log on to my world and all the tekkit blocks and items were gone (levers that were on marble floating etc) and too many items was gone too. it was just like normal minecraft but it sayed tekkit.

Error Messages:

Error Log:

[Flyman]

I think I've had this before, try re-downloading the entire launcher, run it, tell me if it works

[Thaua]

What happened is that the mods failed to load.

Not much can be done right now unless you have a backup of your world. I once had to rebuild my entire workshop because the chunk it was on got corrupted and was overwritten by the world generator.

What I can offer is a hint on how to prevent this from happening again:

First of all, always keep a backup of your world.

Secondly, if it prompts you to update, you do so (after backing up your world). Especially if you set the launcher to fetch the latest updates. What happens at this point is that the launcher may not load the mods if you click "no", and what happens after is compatible with your problem.

Third, ALWAYS check how many mods are installed. It is listed on the lower left corner of the title screen. It should note that 41 mods are installed as of 3.1.2.

Id also recommend that you choose manual build selection and control the updates yourself.