Migrating to Monster from Horizons (giving up, would lose too much)

[Squall]

Hi, trying to migrate my map from Horizons 1.0.9 to Monster 1.0.5 (latest version made most sense). However I try to load it in single player to test it prior to putting it on our server, I get this error:

http://pastebin.com/ZHfMydx5

I tried deleting the dimensions as there arent any significant constructions in them, yet it still refuses to boot, with the same error. Any advice to migrate it over? (from what I have been reading with the universal configs etc, migrating the maps should be straight-forward)
Any other info you need, just ask
Cheers

 

[JamiePhonic]

your problem is discussed in an FAQ here

specificly:

Cannot Load World: Log States There Is Already a Provider for DIM X
This is a known bug related to spawned Descriptive Books. Deleting SAVE/data/agedataX.dat will fix this error.

This issue is resolved in 0.9.5.00, please update if possible.

 

[Squall]

Not sure, but i think that made it worse, new crash log below:

http://pastebin.com/xqCqhsck

 

[JamiePhonic]

its now complaining about an item in your hot bar failing to render. delete the file "<world Name>\players\YOUR_NAME.dat"
this will reset your players inventory, level and location! (you will basically re-join the server as a new player)

 

[Squall]

Ran into another crash, seems like a lot of the chests have the same issue, and once i narrow it down, all the contents of over 2/3rds of the chests on the map vanish was hopin for an easier switch, but i guess ars magica is more of a problem for migrating maps (seems to be ars magica ores and possibly metallurgy causing the issue). On a side note, tried going the other way, installing computercraft manually into the pack causes a rotarycraft book to open rather than the computercraft interface on all the computers and turtles, assume this is more of a bug than anything though