Closed 1.0.2: Inifinity modpack fails to launch (1.1 & 1.2)

[Mutleyx]

Version:
1.0.2

What is the bug:
Unable to launch 1.1 or 1.2, getting the following log:

20:34:53] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:34:53] [main/ERROR]: Unable to launch
java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker

Mod & Version:


Paste.feed-the-beast.com log:
http://pastebin.com/khNiRBmu

Can it be repeated:
Every time.

Known Fix:
None. Direwolf23(1.0.3) updated and works just fine.

 

[TR0NLEGCY2012]

Do you have the proper libraries and minecraft_Server_1.7.10.jar ?

 

[Mutleyx]

No, I don't have the server, I'm not trying to run a server, just to launch the client.
I would expect it to have everything it needs downloaded when I select the version I want?

 

[Kahless61]

As a potential workaround, make a backup of your Infinity folder, and them delete the folder. Have the launcher redownload Infinity. Should hopefully work this time. (Note, for me, it often fails the first time, so I have to re-run it again and it works the second time)

 

[Mutleyx]

However, now that you mention it, changing the launcher's "Install Folder" in the options, and kicking off with a fresh install does solve the problem for me. Thanks dude.

[Edit] And that, thanks Kah.

 

[tfox83]

Seems it didn't get all the libs on the first download. Glad you got it sorted.