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Very basic mod, Working in eclipse, but not on client

Posted October 11, 201212 yr

Hello, I've decided to attempt to get into modding and such so after following a few tutorials I've attempted to produce my own, and it works perfectly in eclipse but not in an actual client. The mod is basically a new ore and some tools so nothing to complicated and i was wondering if i could get some help, Can post source if needed.

Here is the error:

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: mod_slippersite.mod_slippersite

at cpw.mods.fml.common.LoadController.transition(LoadController.java:102)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:467)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:146)

at net.minecraft.client.Minecraft.a(Minecraft.java:416)

at net.minecraft.client.Minecraft.run(Minecraft.java:748)

at java.lang.Thread.run(Unknown Source)

Caused by: java.lang.ClassNotFoundException: mod_slippersite.mod_slippersite

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:125)

at java.lang.ClassLoader.loadClass(Unknown Source)

at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:57)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:407)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:124)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:81)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:466)

... 4 more

Caused by: java.lang.NullPointerException

at org.objectweb.asm.ClassReader.<init>(Unknown Source)

at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:27)

at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:162)

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:118)

... 31 more

--- END ERROR REPORT f3fcadad ----------

And Yes, I the vain fool, Slicedslippers, Named it Slippersite.

Many thanks, SlicedSlippers

Quote

October 11, 201212 yr

Okay, so what are you doing to test in the client?

Maybe this helps you to find what's missing: I run the recompile and reobfuscate scripts and then pack the contents of reobf/minecraft (the minecraft folder should not be included) and put that inside the mods folder.

Quote

October 11, 201212 yr

Author

Well Jeeze, this entire time I've been Zipping up the wrong folder, I feel really stupid. as soon as I attempted to zip up the two folders that the were inside of the minecraft folder that was created by reobf, it worked! Thanks for helping a noob in the truest sense of the word!

I feel really stupid

Quote

October 12, 201212 yr

It must be a common mistake, I also did that the first time I packed my mod. I noticed it was wrong because I packed it in a jar, so I figured it should be looking for "minecraft.mod_name.mod_name" instead.

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Very basic mod, Working in eclipse, but not on client

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