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The most common causes of this issue are: Finally, drop in your natives/ folder gleaned from MC Nostalgia, cross your fingers, and launch!Īgain, I've never had to do this, but it should work.Your IP address has been temporarily blocked due to a large number of HTTP requests.
#DOWNLOAD MINECRAFT FOR MAC 1.4.7 INSTALL#
Wipe the rest, put your modded install in, and delete the minecraft/bin/natives folder that came from Windows. Once it's done the conversion, grab the minecraft/bin/natives folder for later. Close it out, then run Minecraft Nostalgia, choosing 1.4.6 from the list.
#DOWNLOAD MINECRAFT FOR MAC 1.4.7 ARCHIVE#
You would safely archive your modded install, wipe it from the minecraft/ folder, then run the vanilla launcher to get 1.4.7. It appears to support Win/Mac/Linux though.) (I've used it for downgrading to 1.2.5 for modding purposes, but I haven't done it on a Mac.

If using a 1.4.7 natives folder doesn't work though, one way to try would be to use Minecraft Nostalgia, which can downgrade the latest version of Minecraft to an arbitrary previous version. Wipe the rest and put your modded install back in place, remove its Windows-based natives folder, and drop in your new one. Archive your modded install somewhere else, install MC 1.4.7 fresh, and save the natives folder it generates somewhere convenient. I'm not entirely certain how you can do that, but the files from a 1.4.7 install may work if in fact Mojang have not changed very much except for some classes in the main jar file. You can fix this by replacing the contents of that folder with the correct files from a valid 1.4.6 installation that was done on a Mac. When you copied over your install, you copied over the Windows-native files in this folder. This folder contains files that have platform-specific code. There is a small folder inside the minecraft/bin folder called natives.
