nopeman Posted June 18, 2013 Share Posted June 18, 2013 when ever i try to play voltz it shows the mojang screen then 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 Link to comment Share on other sites More sharing options...
alekthefirst Posted June 19, 2013 Share Posted June 19, 2013 delete one of them! Link to comment Share on other sites More sharing options...
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