Discord Moderator plowmanplow Posted April 10, 2014 Discord Moderator Posted April 10, 2014 (edited) The "crash log" is often very good at delivering the Java/class hierarchy related to a particular crash. However, it can fall short when looking for the context in which the crash happened. This is where the ForgeModLoader-client log comes into its own. In this case the FML client log pointed the finger right at BiomesOPlenty: 2014-04-10 07:43:56 [SEVERE] [ForgeModLoader] The following problems were captured during this phase 2014-04-10 07:43:56 [SEVERE] [ForgeModLoader] Caught exception from BiomesOPlenty java.lang.NoClassDefFoundError: thermalexpansion/api/crafting/CraftingHelpers Turns out that you were using a very old version of BOP which was likely compiled against an old ThermalExpansion API. Updating to the latest version of BOP fixes this problem. Edited April 10, 2014 by plowmanplow Quote
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