So i was modding with eclipse and i tried to run my mod and this error popped up and yes im new to modding pls try and help

 

 

net.minecraftforge.fml.common.LoaderException: java.lang.ClassNotFoundException: com.jason.redbull
    at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:102)
    at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:600)
    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.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:218)
    at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:196)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:135)
    at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:593)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232)
    at net.minecraft.client.Minecraft.init(Minecraft.java:513)
    at net.minecraft.client.Minecraft.run(Minecraft.java:421)
    at net.minecraft.client.main.Main.main(Main.java:118)
    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:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    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.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
    at GradleStart.main(GradleStart.java:25)
Caused by: java.lang.ClassNotFoundException: com.jason.redbull
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at net.minecraftforge.fml.common.ModClassLoader.loadClass(ModClassLoader.java:75)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:85)
    ... 43 more
Caused by: java.lang.NullPointerException
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
    ... 49 more

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

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_92, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 821473656 bytes (783 MB) / 1196425216 bytes (1141 MB) up to 7615283200 bytes (7262 MB)
    JVM Flags: 0 total; 
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.42 Powered by Forge 14.23.5.2768 5 mods loaded, 5 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State | ID        | Version      | Source                           | Signature |
    |:----- |:--------- |:------------ |:-------------------------------- |:--------- |
    | UC    | minecraft | 1.12.2       | minecraft.jar                    | None      |
    | UC    | mcp       | 9.42         | minecraft.jar                    | None      |
    | UC    | FML       | 8.0.99.99    | forgeSrc-1.12.2-14.23.5.2768.jar | None      |
    | UC    | forge     | 14.23.5.2768 | forgeSrc-1.12.2-14.23.5.2768.jar | None      |
    | UE    | rm        | 1.0          | bin                              | None      |

    Loaded coremods (and transformers): 
    GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 436.02' Renderer: 'GeForce RTX 2080/PCIe/SSE2'
[13:05:25] [main/INFO] [STDOUT]: [net.minecraft.init.Bootstrap:printToSYSOUT:629]: #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\Jason\Desktop\Minecraft Modding\Minecraft mod\run\.\crash-reports\crash-2019-08-25_13.05.25-client.txt
 

 

 

 

35 minutes ago, McSpank said:

com.jason.redbull

Does this class exist?

i mean i have a package named com.jason.redbull but not class 

 

should i put

 

public  class com.jason.redbull in my main code

oh and also in my main code i have a class called main

54 minutes ago, Animefan8888 said:

Does this class exist?

i have a package called com.jaosn.redbull but not class

in my main code my class is called main

 

my game also starts but then crashes right after it starts up

1 minute ago, McSpank said:

i have a package called com.jaosn.redbull but not class

Well you are saying one of your proxies is at that location.

1 minute ago, Animefan8888 said:

Well you are saying one of your proxies is at that location.

so im super new that coding in this so i was following a yt tutorial so i have no idea what a lot of it means so if u could try and explain as much as possible that would really help

Just now, McSpank said:

so im super new that coding in this so i was following a yt tutorial so i have no idea what a lot of it means so if u could try and explain as much as possible that would really help

I can't help anymore than what I said with out seeing your main class.

1 minute ago, Animefan8888 said:

I can't help anymore than what I said with out seeing your main class.

1 minute ago, McSpank said:

 

Your Reference.CLIENT_PROXY_CLASS and probably Reference.COMMON_PROXY_CLASS fields don't point to your ClientProxy and CommonProxy files.

1 minute ago, Animefan8888 said:

Your Reference.CLIENT_PROXY_CLASS and probably Reference.COMMON_PROXY_CLASS fields don't point to your ClientProxy and CommonProxy files.

so where it says that in my main code its pointing at reference file i think

3 minutes ago, Animefan8888 said:

Your Reference.CLIENT_PROXY_CLASS and probably Reference.COMMON_PROXY_CLASS fields don't point to your ClientProxy and CommonProxy files.

oh i fixed it it was just one uppercase letter thanks again for your help broought my attention to it im probably gonna have some more errors so im probably gonna post again