java.lang.NoClassDefFoundError: net/minecraft/block/Block

[Wirkungsquantum]

Good day,

 

i only just started modding for minecraft the other day using the tutorials on the wiki. It worked perfectly fine until i tried to add a new block. While it still worked with the minecraft version emulated by eclipse my "ordinary" minecraft gives me the above error message. I used the "import net.minecraft.block.Block;" line just as in the tutorial, i assume otherwise the eclipse-minecraft would have had some error of its own. So now my question is: Does anyone have any idea why this might be happening? I myself am clueless for now, and using the search function did not really help me. Please inform me if additional information are required though i didn't see a sticky about a specific form for requests in this sub-forum.

[QuantumLeaf7895]

Good day,

 

i only just started modding for minecraft the other day using the tutorials on the wiki. It worked perfectly fine until i tried to add a new block. While it still worked with the minecraft version emulated by eclipse my "ordinary" minecraft gives me the above error message. I used the "import net.minecraft.block.Block;" line just as in the tutorial, i assume otherwise the eclipse-minecraft would have had some error of its own. So now my question is: Does anyone have any idea why this might be happening? I myself am clueless for now, and using the search function did not really help me. Please inform me if additional information are required though i didn't see a sticky about a specific form for requests in this sub-forum.

 

It's net.minecraft.src.Block.  The fact that minecraft worked fine in eclipse makes me think that your mod file is in the same package as minecraft's Block.java file -- which makes me fear that you're putting your mod files directly in net.minecraft.src.  That's usually a bad idea, as (iirc) it always means that the compiled version of your mod must be installed directly in minecraft.jar.  I recommend looking through wuppy's tutorials on modding post-1.3.1, one of the things they recommend is putting all your mod files in a custom package.

[Wirkungsquantum]

one of the things they recommend is putting all your mod files in a custom package

which i have done already:

 

Also it is not net.minecraft.src.Block any longer:

 

You can also look that up in the tutorial:

http://www.minecraftforge.net/wiki/Tutorials/Basic_Blocks

Here it says import net.minecraft.block.Block;

Wuppy's tutorial appears to be older (18th August) than this one (13th December)

 

Anyhow, thank you for your input, maybe you can think of another possible reason?

[QuantumLeaf7895]

um. . . Well then, I'm sorry I said anything.  I've never seen net.minecraft.block before, from my experiences forge's decompile.bash always puts minecraft.jar classes in a net.minecraft.src package; are you working with the 1.4.6 prerelease? 

[keepcalm]

He's got #444 or above. You need to run recompile.bat and reobfuscated.bat, then the files for the mod.zip will be in reobf/minecraft

[Wirkungsquantum]

I'd like to thank both of you for your help.

keepcalm, you are my hero of the day, using the .bat files worked and i can now add blocks to my liking.

Honestly, this was driving me insane.