(Optional) Install OptiFine with MultiMC for better performance.
Run MultiMC and log in with your Mojang account.Ĭreate two(or more) instances by clicking Add Instance. It works with 1.8.0 instead of 1.8.8, but should still do everything you want.To launch two separate Minecraft instances, we will need a launcher called MultiMC This will run the decompiler with additional RAM.Īlternatively, if you don't want to mess around with the MCP configuration, MCP910 doesn't seem to have this issue. (You may need to change other lines also adding -Xmx2G before -jar but it doesn't seem to be needed from my experience). Then, find this line (near the bottom) CmdFernflower = %s -jar %s -din=1 -rbr=0 -dgs=1 -asc=1 -log=WARN In the MCP folder, open the conf folder and then open mcp.cfg with a text editor of your choice.
(Which is fine but forge does make mods easier/more compatible you may want to consider doing this if you're making a more permanent mod rather than just messing about.) In this case, you can edit MCP's configuration to increase the given RAM. However, given that you referenced decompile.bat, you probably are using MCP without Forge. gradle/gradle.properties in your user folder) and add =-Xmx2G to it, or you can set the options variable to -Xmx2G (in a command prompt, run set GRADLE_OPTS=-Xmx2G and then gradlew setupDecompWorkspace). You can either edit the gradle options file (. If you're using Minecraft Forge's ForgeGradle, see this.
I'm not entirely sure why it's happening, but it also was happening to me. This is caused by the decompilation system running out of RAM. I have decided to take on MCP and have downloaded it, however, when running the decompile.bat, it returns an error.