sjw49 Posted February 15, 2013 Share Posted February 15, 2013 Now it says, Forge Mod Loader has found a problem with your minecraft installation you have mod sources that are duplicate within your system Mod Id: File name Mekanism : Mekanism.jar Mekanism : mekanism-v5.2.0.jar please help I can't play until it is fixed Link to comment Share on other sites More sharing options...
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