Carpet6142

I have forge 1.8.9 and force 1.14.4. When I remove 1.14.4, I can use 1.8.9. But when I keep it, 1.8.9 doesn't work, but 1.14.4 does work. So I was wondering if two forge mods can't exist in the same mod folder? It just says crash: ---- Minecraft Crash Report ---- WARNING: coremods are present: Contact their authors BEFORE contacting forge // Don't do that. Time: 11/8/19 4:00 PM Description: Initializing game java.lang.NullPointerException: Initializing game at net.minecraftforge.fml.common.Loader$ModIdComparator.compare(Loader.java:375) at net.minecraftforge.fml.common.Loader$ModIdComparator.compare(Loader.java:370) at java.util.TreeMap.getEntryUsingComparator(TreeMap.java:376) at java.util.TreeMap.getEntry(TreeMap.java:345) at java.util.TreeMap.get(TreeMap.java:278) at com.google.common.collect.AbstractMapBasedMultimap.put(AbstractMapBasedMultimap.java:192) at com.google.common.collect.AbstractSetMultimap.put(AbstractSetMultimap.java:121) at com.google.common.collect.TreeMultimap.put(TreeMultimap.java:78) at net.minecraftforge.fml.common.Loader.identifyDuplicates(Loader.java:386) at net.minecraftforge.fml.common.Loader.identifyMods(Loader.java:364) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:488) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:208) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:417) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at net.minecraftforge.fml.common.Loader$ModIdComparator.compare(Loader.java:375) at net.minecraftforge.fml.common.Loader$ModIdComparator.compare(Loader.java:370) at java.util.TreeMap.getEntryUsingComparator(TreeMap.java:376) at java.util.TreeMap.getEntry(TreeMap.java:345) at java.util.TreeMap.get(TreeMap.java:278) at com.google.common.collect.AbstractMapBasedMultimap.put(AbstractMapBasedMultimap.java:192) at com.google.common.collect.AbstractSetMultimap.put(AbstractSetMultimap.java:121) at com.google.common.collect.TreeMultimap.put(TreeMultimap.java:78) at net.minecraftforge.fml.common.Loader.identifyDuplicates(Loader.java:386) at net.minecraftforge.fml.common.Loader.identifyMods(Loader.java:364) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:488) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:208) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:417) -- Initialization -- Details: Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.8.9 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 307351640 bytes (293 MB) / 536870912 bytes (512 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.19 Powered by Forge 11.15.1.1722 7 mods loaded, 0 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.1.1722.jar) Forge{11.15.1.1722} [Minecraft Forge] (forge-1.8.9-11.15.1.1722.jar) skyblockaddons{1.4.0} [SkyBlock Addons] (SkyblockAddons-1.4.0-for-MC-1.8.9 (1).jar) null{1.0} [null] (FunItems-Mod-1.14.4.jar) null{1.0} [null] (Mutant-Beasts-1.14.4.jar) null{1.0} [null] (SuperTools-1.6b.jar) Loaded coremods (and transformers): GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13399 Compatibility Profile Context 15.201.1151.1008' Renderer: 'AMD Radeon HD 7000 series' Launched Version: 1.8.9-forge1.8.9-11.15.1.1722 LWJGL: 2.9.4 OpenGL: AMD Radeon HD 7000 series GL version 4.5.13399 Compatibility Profile Context 15.201.1151.1008, ATI Technologies Inc. GL Caps: Using GL 1.3 multitexturing. Using GL 1.3 texture combiners. Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported. Shaders are available because OpenGL 2.1 is supported. VBOs are available because OpenGL 1.5 is supported. Using VBOs: No Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Packs: vanilla Current Language: English (US) Profiler Position: N/A (disabled) CPU: 8x Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz