sean o Posted February 7, 2013 Share Posted February 7, 2013 when i launch voltz it says: forge mod loader has found a problem with your minegraft insulation you have mod sources that are duplicate in your system mod id: file name meckanism: meckanism.jar meckanism: mekinism-v5.2.0.jar i hope someone can help me Link to comment Share on other sites More sharing options...
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