[3.0.3/3.0.4] Some machines dissapeared/items changed to something else

[Teilathan]

Title: Some machines dissapeared/items changed to something else

Version: 3.0.3/3.0.4

OS: Win 7

Java Version: Java 7

Description of Problem:

I've been playing tekkit as a single player as I wanted to build stuff while waiting new computer to be able to run server on this one eventually.

Yesterday after Tekkit updates I logged into the world, and some of my machines (electric engines, energy collectors) are gone, coke coal and the oil (forgot the name) have been changed to totally something else, other one says even obsolite in item description. I have a back up of my world of course, but how to get it working again?

I'm not very technical with computers, I've just loved playing this and building stuff with all the machines helping on collecting it and having extra possibilities for building in tekkit.

I'd really like to be able to save the world I have and get it running again as I have spent 3 months on bulding it so far.

I hope someone could help me with this.

(I usually use texture pack on tekkit, but have now tried to get world going without it and this isn't working either)

Error Messages:

Error Log:

[Jay?]

You don't get to just update your client. Some IDs have been swapped about, and forestry isnt even in the game anymore. check the thread "so you want to update your map to 3.0.3..."

[Teilathan]

Thanks for the reply! Is this the thread you mean? http://forums.technicpack.net/threads/so-you-want-to-convert-your-world-to-tekkit-3-0.9492/

Also is there a way to get my old version of client and mods back then? I didn't mean to update, it just automatically updated when I opened tekkit and now I can't play anymore because of this problem :(

[Jay?]

It might still be there if you click on "manual select" in the options. I haven't checked.

Yes, that's the thread i was talking about.