Currently LaunchWrapper for Fabric is only supported in MultiMC derivatives.
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For Babric: obtain a Babric PrismLauncher instance
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For OrnitheMC: use Ornithe installer and generate instance zip for preferred version
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Perform the same steps from MultiMC guide for this instance
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Create another component with the following JSON:
Show JSON
{ "formatVersion": 1, "name": "LaunchWrapper Fabric Compat", "uid": "org.mcphackers.launchwrapper.fabric", "version": "1.0-SNAPSHOT", "libraries": [ { "downloads": {}, "name": "org.mcphackers:launchwrapper-fabric:1.0-SNAPSHOT" } ], "mainClass": "org.mcphackers.launchwrapper.fabric.FabricBridge" }
Again, for the library without download you need to build LaunchWrapper. Copy jar from
launchwrapper-fabric/build/libs/launchwrapper-fabric-1.0-SNAPSHOT.jar
to<MutltiMC root>/libraries/org/mcphackers/launchwrapper-fabric/1.0-SNAPSHOT/launchwrapper-fabric-1.0-SNAPSHOT.jar
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Make sure the component is under LaunchWrapper component