Hello im trying to develop my first mod in eclipse java oxygen on MC 1.12.2 but when i launch the game using eclipse i loads with out the mod (4 mods loaded) 8 will also attach a copy of my console

 

[14:49:39] [main/INFO] [GradleStart]: Extra: []
[14:49:39] [main/INFO] [GradleStart]: Running with arguments: [--userProperties, {}, --assetsDir, C:/Users/aster_myf3n/.gradle/caches/minecraft/assets, --assetIndex, 1.12, --accessToken{REDACTED}, --version, 1.12.2, --tweakClass, net.minecraftforge.fml.common.launcher.FMLTweaker, --tweakClass, net.minecraftforge.gradle.tweakers.CoremodTweaker]
[14:49:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[14:49:39] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[14:49:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.tweakers.CoremodTweaker
[14:49:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[14:49:39] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2847 for Minecraft 1.12.2 loading
[14:49:39] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_241, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_241
[14:49:39] [main/ERROR] [FML]: Apache Maven library folder was not in the format expected. Using default libraries directory.
[14:49:39] [main/ERROR] [FML]: Full: C:\Users\aster_myf3n\.gradle\caches\modules-2\files-2.1\org.apache.maven\maven-artifact\3.5.3\7dc72b6d6d8a6dced3d294ed54c2cc3515ade9f4\maven-artifact-3.5.3.jar
[14:49:39] [main/ERROR] [FML]: Trimmed: c:/users/aster_myf3n/.gradle/caches/modules-2/files-2.1/org.apache.maven/maven-artifact/3.5.3/
[14:49:39] [main/INFO] [FML]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[14:49:39] [main/INFO] [FML]: Detected deobfuscated environment, loading log configs for colored console logs.
2020-04-04 14:49:41,147 main WARN Disabling terminal, you're running in an unsupported environment.
[14:49:41] [main/INFO] [FML]: Ignoring missing certificate for coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin), we are in deobf and it's a forge core plugin
[14:49:41] [main/INFO] [FML]: Ignoring missing certificate for coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin), we are in deobf and it's a forge core plugin
[14:49:41] [main/INFO] [FML]: Searching C:\Users\aster_myf3n\Desktop\Minecraft Modding\New Template 1.12.2\run\.\mods for mods
[14:49:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.tweakers.CoremodTweaker
[14:49:41] [main/INFO] [GradleStart]: Injecting location in coremod net.minecraftforge.fml.relauncher.FMLCorePlugin
[14:49:41] [main/INFO] [GradleStart]: Injecting location in coremod net.minecraftforge.classloading.FMLForgePlugin
[14:49:41] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:49:41] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[14:49:41] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[14:49:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:49:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:49:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[14:49:43] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[14:49:43] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[14:49:43] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[14:49:44] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[14:49:44] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[14:49:44] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[14:49:44] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[14:49:44] [Client thread/INFO] [minecraft/Minecraft]: Setting user: Player891
[14:49:48] [Client thread/WARN] [minecraft/GameSettings]: Skipping bad option: lastServer:
[14:49:48] [Client thread/INFO] [minecraft/Minecraft]: LWJGL Version: 2.9.4
[14:49:49] [Client thread/INFO] [FML]: -- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_241, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 424599024 bytes (404 MB) / 519045120 bytes (495 MB) up to 3803185152 bytes (3627 MB)
    JVM Flags: 0 total;
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML:
    Loaded coremods (and transformers):
    GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.6.13587 Compatibility Profile Context 20.2.2 26.20.15019.19000' Renderer: 'Radeon RX 570 Series'
[14:49:50] [Client thread/INFO] [FML]: MinecraftForge v14.23.5.2847 Initialized
[14:49:50] [Client thread/INFO] [FML]: Starts to replace vanilla recipe ingredients with ore ingredients.
[14:49:50] [Client thread/INFO] [FML]: Invalid recipe found with multiple oredict ingredients in the same ingredient...
[14:49:50] [Client thread/INFO] [FML]: Replaced 1227 ore ingredients
[14:49:50] [Client thread/INFO] [FML]: Searching C:\Users\aster_myf3n\Desktop\Minecraft Modding\New Template 1.12.2\run\.\mods for mods
[14:49:50] [Client thread/ERROR] [FML]: Unable to construct net.minecraftforge.fml.common.Mod container
java.lang.reflect.InvocationTargetException: null
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_241]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_241]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_241]
    at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_241]
    at net.minecraftforge.fml.common.ModContainerFactory.build(ModContainerFactory.java:73) [ModContainerFactory.class:?]
    at net.minecraftforge.fml.common.discovery.DirectoryDiscoverer.exploreFileSystem(DirectoryDiscoverer.java:135) [DirectoryDiscoverer.class:?]
    at net.minecraftforge.fml.common.discovery.DirectoryDiscoverer.exploreFileSystem(DirectoryDiscoverer.java:104) [DirectoryDiscoverer.class:?]
    at net.minecraftforge.fml.common.discovery.DirectoryDiscoverer.exploreFileSystem(DirectoryDiscoverer.java:104) [DirectoryDiscoverer.class:?]
    at net.minecraftforge.fml.common.discovery.DirectoryDiscoverer.exploreFileSystem(DirectoryDiscoverer.java:104) [DirectoryDiscoverer.class:?]
    at net.minecraftforge.fml.common.discovery.DirectoryDiscoverer.discover(DirectoryDiscoverer.java:62) [DirectoryDiscoverer.class:?]
    at net.minecraftforge.fml.common.discovery.ContainerType.findMods(ContainerType.java:47) [ContainerType.class:?]
    at net.minecraftforge.fml.common.discovery.ModCandidate.explore(ModCandidate.java:74) [ModCandidate.class:?]
    at net.minecraftforge.fml.common.discovery.ModDiscoverer.identifyMods(ModDiscoverer.java:93) [ModDiscoverer.class:?]
    at net.minecraftforge.fml.common.Loader.identifyMods(Loader.java:427) [Loader.class:?]
    at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:568) [Loader.class:?]
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232) [FMLClientHandler.class:?]
    at net.minecraft.client.Minecraft.init(Minecraft.java:514) [Minecraft.class:?]
    at net.minecraft.client.Minecraft.run(Minecraft.java:422) [Minecraft.class:?]
    at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_241]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_241]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_241]
    at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
    at GradleStart.main(GradleStart.java:25) [start/:?]
Caused by: java.lang.IllegalArgumentException: The modId MM_MarrsI must be all lowercase.
    at net.minecraftforge.fml.common.FMLModContainer.sanityCheckModId(FMLModContainer.java:159) ~[FMLModContainer.class:?]
    at net.minecraftforge.fml.common.FMLModContainer.<init>(FMLModContainer.java:130) ~[FMLModContainer.class:?]
    ... 31 more
[14:49:52] [Client thread/INFO] [FML]: Forge Mod Loader has identified 4 mods to load
[14:49:52] [Thread-3/INFO] [FML]: Using sync timing. 200 frames of Display.update took 122266700 nanos
[14:49:52] [Client thread/INFO] [FML]: Attempting connection with missing mods [minecraft, mcp, FML, forge] at CLIENT
[14:49:52] [Client thread/INFO] [FML]: Attempting connection with missing mods [minecraft, mcp, FML, forge] at SERVER
[14:49:53] [Client thread/INFO] [minecraft/SimpleReloadableResourceManager]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge
[14:49:53] [Client thread/INFO] [FML]: Processing ObjectHolder annotations
[14:49:53] [Client thread/INFO] [FML]: Found 1168 ObjectHolder annotations
[14:49:53] [Client thread/INFO] [FML]: Identifying ItemStackHolder annotations
[14:49:53] [Client thread/INFO] [FML]: Found 0 ItemStackHolder annotations
[14:49:53] [Client thread/INFO] [FML]: Configured a dormant chunk cache size of 0
[14:49:53] [Forge Version Check/INFO] [forge.VersionCheck]: [forge] Starting version check at http://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
[14:49:53] [Client thread/INFO] [FML]: Applying holder lookups
[14:49:53] [Client thread/INFO] [FML]: Holder lookups applied
[14:49:53] [Client thread/INFO] [FML]: Applying holder lookups
[14:49:53] [Client thread/INFO] [FML]: Holder lookups applied
[14:49:53] [Client thread/INFO] [FML]: Applying holder lookups
[14:49:53] [Client thread/INFO] [FML]: Holder lookups applied
[14:49:53] [Client thread/INFO] [FML]: Applying holder lookups
[14:49:53] [Client thread/INFO] [FML]: Holder lookups applied
[14:49:53] [Client thread/INFO] [FML]: Injecting itemstacks
[14:49:53] [Client thread/INFO] [FML]: Itemstack injection complete
[14:49:53] [Forge Version Check/INFO] [forge.VersionCheck]: [forge] Found status: AHEAD Target: null
[14:50:00] [Sound Library Loader/INFO] [minecraft/SoundManager]: Starting up SoundSystem...
[14:50:00] [Thread-5/INFO] [minecraft/SoundManager]: Initializing LWJGL OpenAL
[14:50:00] [Thread-5/INFO] [minecraft/SoundManager]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[14:50:00] [Thread-5/INFO] [minecraft/SoundManager]: OpenAL initialized.
[14:50:00] [Sound Library Loader/INFO] [minecraft/SoundManager]: Sound engine started
[14:50:08] [Client thread/INFO] [FML]: Max texture size: 16384
[14:50:09] [Client thread/INFO] [minecraft/TextureMap]: Created: 512x512 textures-atlas
[14:50:11] [Client thread/INFO] [FML]: Applying holder lookups
[14:50:11] [Client thread/INFO] [FML]: Holder lookups applied
[14:50:11] [Client thread/INFO] [FML]: Injecting itemstacks
[14:50:11] [Client thread/INFO] [FML]: Itemstack injection complete
[14:50:11] [Client thread/INFO] [FML]: Forge Mod Loader has successfully loaded 4 mods
[14:50:11] [Client thread/WARN] [minecraft/GameSettings]: Skipping bad option: lastServer:
[14:50:11] [Client thread/INFO] [mojang/NarratorWindows]: Narrator library for x64 successfully loaded
[14:50:12] [Realms Notification Availability checker #1/INFO] [mojang/RealmsClient]: Could not authorize you against Realms server: Invalid session id

 

2 minutes ago, MarrsI said:

 Minecraft Version: 1.12.2

Sorry 1.12.2 is no longer supported on this forum due to it's age. Please update to a more modern version of Minecraft. For more information check out the link at the top of the page about Forge's LTS.