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Currently Supported: 1.18.X (Latest), 1.16.X(LTS)
Java and you: How to avoid crashes

[1.7.2 -- SOLVED] ClassNotFoundException and some other errors

Bektor

By Bektor,
in Modder Support

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Bektor Dragon Slayer

Bektor

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After I setup everything, this error appears every time in my console from eclipse if I'm starting Minecraft and in the ExampleMod class many things are red marked.

 

Here is the error:

[18:03:55] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[18:03:55] [main/ERROR]: Unable to launch
java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_51]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_51]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_51]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_51]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:104) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_51]
at java.lang.Class.forName0(Native Method) ~[?:1.7.0_51]
at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:97) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]

 

I have created three screenshots, so you can see what I mean:

https://www.dropbox.com/s/119ax80mr032wrt/Error1.jpg

https://www.dropbox.com/s/qdk3g841lzexerc/Error2.jpg

https://www.dropbox.com/s/oz3c8lpvisk7vvx/Error3.jpg

 

I hope that you can help me.

Bektor

Developer of Primeval Forest.

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Draco18s Reality Controller

Draco18s

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Posted

Looks like you didn't run either gradel setupDevWorkspace (sp?) or gradel eclipse

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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Bektor Dragon Slayer

Bektor

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There is currently a bug in ForgeGradle so you have to run them separately:

 

gradle setupDecompWorkspace (let this finish)

and then: gradle eclipse

 

This didn't help!

Now I get a new error:

[18:57:41] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[18:57:41] [main/INFO] [FML]: Forge Mod Loader version 7.2.116.1024 for Minecraft 1.7.2 loading
[18:57:41] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.7.0_51, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre7
[18:57:41] [main/INFO] [FML]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[18:57:41] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:57:41] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:57:42] [main/ERROR] [FML]: The binary patch set is missing. Either you are in a development environment, or things are not going to work!
[18:57:42] [main/ERROR] [FML]: The minecraft jar file:/C:/Users/Benutzer/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.2-10.12.0.1024/forgeSrc-1.7.2-10.12.0.1024.jar!/net/minecraft/client/ClientBrandRetriever.class appears to be corrupt! There has been CRITICAL TAMPERING WITH MINECRAFT, it is highly unlikely minecraft will work! STOP NOW, get a clean copy and try again!
[18:57:42] [main/ERROR] [FML]: FML has been ordered to ignore the invalid or missing minecraft certificate. This is very likely to cause a problem!
[18:57:42] [main/ERROR] [FML]: Technical information: ClientBrandRetriever was at jar:file:/C:/Users/Benutzer/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.2-10.12.0.1024/forgeSrc-1.7.2-10.12.0.1024.jar!/net/minecraft/client/ClientBrandRetriever.class, there were 0 certificates for it
[18:57:42] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[18:57:42] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:57:42] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[18:57:42] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[18:57:42] [main/INFO]: Setting user: Player744
[18:57:42] [Client thread/INFO]: LWJGL Version: 2.9.0
[18:57:42] [Client thread/ERROR]: Couldn't set icon
javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.client.Minecraft.readImage(Minecraft.java:680) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.startGame(Minecraft.java:509) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
[18:57:43] [Client thread/INFO] [MinecraftForge]: Attempting early MinecraftForge initialization
[18:57:43] [Client thread/INFO] [FML]: MinecraftForge v10.12.0.1024 Initialized
[18:57:43] [Client thread/INFO] [FML]: Replaced 128 ore recipies
[18:57:43] [Client thread/INFO] [MinecraftForge]: Completed early MinecraftForge initialization
[18:57:43] [Client thread/INFO] [FML]: Config directory created successfully
[18:57:43] [Client thread/INFO] [FML]: Searching D:\Patrick\ForgeVersions\Forge_1.7.2\mods for mods
[18:57:44] [Client thread/ERROR] [FML]: FML has detected a mod that is using a package name based on 'net.minecraft.src' : net.minecraft.src.FMLRenderAccessLibrary. This is generally a severe programming error.  There should be no mod code in the minecraft namespace. MOVE YOUR MOD! If you're in eclipse, select your source code and 'refactor' it into a new package. Go on. DO IT NOW!
[18:57:45] [Client thread/INFO] [FML]: Forge Mod Loader has identified 4 mods to load
[18:57:45] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:Example Mod
[18:57:45] [Client thread/INFO] [FML]: Configured a dormant chunk cache size of 0

Starting up SoundSystem...
Initializing LWJGL OpenAL
    (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
OpenAL initialized.
[18:57:45] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[18:57:45] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[18:57:45] [Client thread/ERROR] [FML]: Fatal errors were detected during the transition from INITIALIZATION to POSTINITIALIZATION. Loading cannot continue
[18:57:45] [Client thread/ERROR] [FML]: 
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{7.2.116.1024} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized->Initialized
Forge{10.12.0.1024} [Minecraft Forge] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized->Initialized
examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Errored
[18:57:45] [Client thread/ERROR] [FML]: The following problems were captured during this phase
[18:57:45] [Client thread/ERROR] [FML]: Caught exception from examplemod
java.lang.Error: Unresolved compilation problem: 
The method func_149739_a() is undefined for the type Block

at com.example.examplemod.ExampleMod.init(ExampleMod.java:18) ~[ExampleMod.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:536) ~[FMLModContainer.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) ~[guava-15.0.jar:?]
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.post(EventBus.java:267) ~[guava-15.0.jar:?]
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:209) ~[LoadController.class:?]
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:188) ~[LoadController.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) ~[guava-15.0.jar:?]
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) ~[guava-15.0.jar:?]
at com.google.common.eventbus.EventBus.post(EventBus.java:267) ~[guava-15.0.jar:?]
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119) [LoadController.class:?]
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:676) [Loader.class:?]
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:260) [FMLClientHandler.class:?]
at net.minecraft.client.Minecraft.startGame(Minecraft.java:624) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
---- Minecraft Crash Report ----
// Don't do that.

Time: 10.02.14 18:57
Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.Error: Unresolved compilation problem: 
The method func_149739_a() is undefined for the type Block

at cpw.mods.fml.common.LoadController.transition(LoadController.java:163)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:677)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:260)
at net.minecraft.client.Minecraft.startGame(Minecraft.java:624)
at net.minecraft.client.Minecraft.run(Minecraft.java:931)
at net.minecraft.client.main.Main.main(Main.java:112)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.Error: Unresolved compilation problem: 
The method func_149739_a() is undefined for the type Block

at com.example.examplemod.ExampleMod.init(ExampleMod.java:18)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:536)
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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:209)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:188)
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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:676)
... 10 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 26385784 bytes (25 MB) / 120246272 bytes (114 MB) up to 259522560 bytes (247 MB)
JVM Flags: 0 total; 
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.01-pre FML v7.2.116.1024 Minecraft Forge 10.12.0.1024 4 mods loaded, 4 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{7.2.116.1024} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized->Initialized
Forge{10.12.0.1024} [Minecraft Forge] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized->Initialized
examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Errored
#@!@# Game crashed! Crash report saved to: #@!@# D:\Patrick\ForgeVersions\Forge_1.7.2\.\crash-reports\crash-2014-02-10_18.57.45-client.txt
AL lib: (EE) alc_cleanup: 1 device not closed

 

Oh and here is one new screenshots:

https://www.dropbox.com/s/nns2qig3n8mm9jd/error4.jpg

 

Bektor

Developer of Primeval Forest.

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Bektor Dragon Slayer

Bektor

Posted
  • Author
Posted

The example mod is broken atm. Remove it.

 

Thanks! Now I can start Minecraft and test it :D

But what did this mean:

[19:13:19] [Client thread/ERROR]: Couldn't set icon
javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.client.Minecraft.readImage(Minecraft.java:680) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.startGame(Minecraft.java:509) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
[19:13:19] [Client thread/INFO] [MinecraftForge]: Attempting early MinecraftForge initialization

??

 

Oh and there is no sound. :(

 

Bektor

Developer of Primeval Forest.

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