Tekkit 1.2.9e can not open

[Skly]

tekkit can not open....

have people can help me how to fix?

 

my computer os is Windows 8.1

 

http://pastebin.com/hVyYnkqr

 

Edited April 21, 2015 by Skly

[Munaus]

[ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException

this is an issue between Forge and your Java. Get the LegacyJavaFixer from LexManos (creator of Forge) https://github.com/LexManos/LegacyJavaFixer put the file inside the modpack -> mod folder that you wish to play