1.12.2 mods not being detected by 1.12.2 forge.

[ashadbeckham]

i downloaded rl craft and downloadedforge 1.12.2, i put rlcraft mod in .minecraft then mods and then installed 1.12.2 foreg as a client and opened it in minecraft but the mod is not detected

debugg logg.

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:145) ~[?:1.8.0_51]
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131) ~[?:1.8.0_51]
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) ~[?:1.8.0_51]
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382) ~[?:1.8.0_51]
    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_51]
    at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_51]
    at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_51]
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_51]
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_51]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1479) ~[?:1.8.0_51]
    ... 21 more
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading sounds took 0.775s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - SoundHandler took 0.792s
[18:20:53] [Sound Library Loader/INFO] [net.minecraft.client.audio.SoundManager]: Starting up SoundSystem...
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - FontRenderer took 0.006s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - FontRenderer took 0.004s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - GrassColorReloadListener took 0.008s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - FoliageColorReloadListener took 0.007s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Step: Rendering Setup - GL Setup took 0.001s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Step: Rendering Setup - Loading Texture Map took 0.006s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - B3DLoader took 0.000s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - OBJLoader took 0.000s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - ModelFluid$FluidLoader took 0.000s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - ItemLayerModel$Loader took 0.000s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - MultiLayerModel$Loader took 0.000s
[18:20:53] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - ModelDynBucket$LoaderDynBucket took 0.000s
[18:20:53] [Thread-5/INFO] [net.minecraft.client.audio.SoundManager]: Initializing LWJGL OpenAL
[18:20:53] [Thread-5/INFO] [net.minecraft.client.audio.SoundManager]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[18:20:53] [Thread-5/INFO] [net.minecraft.client.audio.SoundManager]: OpenAL initialized.
[18:20:54] [Sound Library Loader/INFO] [net.minecraft.client.audio.SoundManager]: Sound engine started
[18:20:56] [Client thread/DEBUG] [FML]: Bar Finished: ModelLoader: blocks took 2.304s
[18:20:57] [Client thread/DEBUG] [FML]: Bar Finished: ModelLoader: items took 1.070s
[18:20:57] [Client thread/INFO] [FML]: Max texture size: 16384
[18:20:59] [Client thread/DEBUG] [FML]: Bar Finished: Texture stitching took 2.716s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Texture stitching took 0.015s
[18:21:00] [Client thread/INFO] [net.minecraft.client.renderer.texture.TextureMap]: Created: 512x512 textures-atlas
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Texture creation took 0.018s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Texture mipmap and upload took 0.016s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: ModelLoader: baking took 0.339s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - ModelManager took 6.605s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Step: Rendering Setup - Loading Model Manager took 6.690s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - RenderItem took 0.011s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Step: Rendering Setup - Loading Item Renderer took 0.271s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - EntityRenderer took 0.000s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - BlockRendererDispatcher took 0.000s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - RenderGlobal took 0.000s
[18:21:00] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - SearchTreeManager took 0.078s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: Rendering Setup - Loading Entity Renderer took 0.300s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: Rendering Setup took 7.268s
[18:21:01] [Client thread/INFO] [FML]: Applying holder lookups
[18:21:01] [Client thread/INFO] [FML]: Holder lookups applied
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLInitializationEvent to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLInitializationEvent to mod minecraft
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: Initialization - Minecraft took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLInitializationEvent to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLInitializationEvent to mod mcp
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: Initialization - Minecraft Coder Pack took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLInitializationEvent to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLInitializationEvent to mod FML
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: Initialization - Forge Mod Loader took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLInitializationEvent to mod forge
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLInitializationEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: Initialization - Minecraft Forge took 0.000s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: Initialization took 0.001s
[18:21:01] [Client thread/TRACE] [FML]: Attempting to deliver 0 IMC messages to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sending event IMCEvent to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sent event IMCEvent to mod minecraft
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: InterModComms$IMC - Minecraft took 0.026s
[18:21:01] [Client thread/TRACE] [FML]: Attempting to deliver 0 IMC messages to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sending event IMCEvent to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sent event IMCEvent to mod mcp
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: InterModComms$IMC - Minecraft Coder Pack took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Attempting to deliver 0 IMC messages to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sending event IMCEvent to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sent event IMCEvent to mod FML
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: InterModComms$IMC - Forge Mod Loader took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Attempting to deliver 0 IMC messages to mod forge
[18:21:01] [Client thread/TRACE] [FML]: Sending event IMCEvent to mod forge
[18:21:01] [Client thread/TRACE] [FML]: Sent event IMCEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: InterModComms$IMC - Minecraft Forge took 0.000s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: InterModComms$IMC took 0.026s
[18:21:01] [Client thread/INFO] [FML]: Injecting itemstacks
[18:21:01] [Client thread/INFO] [FML]: Itemstack injection complete
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLPostInitializationEvent to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLPostInitializationEvent to mod minecraft
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: PostInitialization - Minecraft took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLPostInitializationEvent to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLPostInitializationEvent to mod mcp
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: PostInitialization - Minecraft Coder Pack took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLPostInitializationEvent to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLPostInitializationEvent to mod FML
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: PostInitialization - Forge Mod Loader took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLPostInitializationEvent to mod forge
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLPostInitializationEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: PostInitialization - Minecraft Forge took 0.011s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: PostInitialization took 0.012s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLLoadCompleteEvent to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLLoadCompleteEvent to mod minecraft
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: LoadComplete - Minecraft took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLLoadCompleteEvent to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLLoadCompleteEvent to mod mcp
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: LoadComplete - Minecraft Coder Pack took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLLoadCompleteEvent to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLLoadCompleteEvent to mod FML
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: LoadComplete - Forge Mod Loader took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLLoadCompleteEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Forge RecipeSorter Baking:
[18:21:01] [Client thread/DEBUG] [FML]:   16: RecipeEntry("Before", UNKNOWN, )
[18:21:01] [Client thread/DEBUG] [FML]:   15: RecipeEntry("minecraft:shaped", SHAPED, net.minecraft.item.crafting.ShapedRecipes) Before: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   14: RecipeEntry("forge:shapedore", SHAPED, net.minecraftforge.oredict.ShapedOreRecipe) Before: minecraft:shapeless After: minecraft:shaped
[18:21:01] [Client thread/DEBUG] [FML]:   13: RecipeEntry("minecraft:mapextending", SHAPED, net.minecraft.item.crafting.RecipesMapExtending) Before: minecraft:shapeless After: minecraft:shaped
[18:21:01] [Client thread/DEBUG] [FML]:   12: RecipeEntry("minecraft:shapeless", SHAPELESS, net.minecraft.item.crafting.ShapelessRecipes) After: minecraft:shaped
[18:21:01] [Client thread/DEBUG] [FML]:   11: RecipeEntry("minecraft:repair", SHAPELESS, net.minecraft.item.crafting.RecipeRepairItem) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   10: RecipeEntry("minecraft:shield_deco", SHAPELESS, net.minecraft.item.crafting.ShieldRecipes$Decoration) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   9: RecipeEntry("minecraft:armordyes", SHAPELESS, net.minecraft.item.crafting.RecipesArmorDyes) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   8: RecipeEntry("minecraft:fireworks", SHAPELESS, net.minecraft.item.crafting.RecipeFireworks) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   7: RecipeEntry("minecraft:pattern_dupe", SHAPELESS, net.minecraft.item.crafting.RecipesBanners$RecipeDuplicatePattern) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   6: RecipeEntry("minecraft:tippedarrow", SHAPELESS, net.minecraft.item.crafting.RecipeTippedArrow) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   5: RecipeEntry("minecraft:mapcloning", SHAPELESS, net.minecraft.item.crafting.RecipesMapCloning) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   4: RecipeEntry("forge:shapelessore", SHAPELESS, net.minecraftforge.oredict.ShapelessOreRecipe) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   3: RecipeEntry("minecraft:pattern_add", SHAPELESS, net.minecraft.item.crafting.RecipesBanners$RecipeAddPattern) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   2: RecipeEntry("minecraft:bookcloning", SHAPELESS, net.minecraft.item.crafting.RecipeBookCloning) After: minecraft:shapeless
[18:21:01] [Client thread/DEBUG] [FML]:   1: RecipeEntry("After", UNKNOWN, )
[18:21:01] [Client thread/DEBUG] [FML]: Sorting recipes
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLLoadCompleteEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: LoadComplete - Minecraft Forge took 0.009s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: LoadComplete took 0.009s
[18:21:01] [Client thread/DEBUG] [FML]: Freezing registries
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLModIdMappingEvent to mod minecraft
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLModIdMappingEvent to mod minecraft
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: ModIdMapping - Minecraft took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLModIdMappingEvent to mod mcp
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLModIdMappingEvent to mod mcp
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: ModIdMapping - Minecraft Coder Pack took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLModIdMappingEvent to mod FML
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLModIdMappingEvent to mod FML
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: ModIdMapping - Forge Mod Loader took 0.000s
[18:21:01] [Client thread/TRACE] [FML]: Sending event FMLModIdMappingEvent to mod forge
[18:21:01] [Client thread/TRACE] [FML]: Sent event FMLModIdMappingEvent to mod forge
[18:21:01] [Client thread/DEBUG] [FML]: Bar Step: ModIdMapping - Minecraft Forge took 0.075s
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: ModIdMapping took 0.076s
[18:21:01] [Client thread/DEBUG] [FML]: All registries frozen
[18:21:01] [Client thread/INFO] [FML]: Forge Mod Loader has successfully loaded 4 mods
[18:21:01] [Client thread/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: lastServer:
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: Loading took 10.820s
[18:21:01] [Client thread/INFO] [com.mojang.text2speech.NarratorWindows]: Narrator library for x64 successfully loaded
[18:21:01] [Client thread/DEBUG] [FML]: Bar Finished: Loading Resource - CloudRenderer took 0.014s
[18:27:50] [Client thread/INFO] [net.minecraft.client.Minecraft]: Stopping!
[18:27:50] [Client thread/INFO] [net.minecraft.client.audio.SoundManager]: SoundSystem shutting down...
[18:27:50] [Client thread/WARN] [net.minecraft.client.audio.SoundManager]: Author: Paul Lamb, www.paulscode.com

[TileEntity]

RLCraft is a modpack - how did you get a jar from it? Did you rename the .zip extension?

To install this modpack, get a custom Launcher like FTB App, AT launcher or MultiMC

Search for the modpack there and install it