_QFL_

Mixing both answers helped, after genEclipseRuns, net.minecraftforge.userdev.LaunchTesting showed. Thanks.

I wanted to learn how to make mods. My help was youtube video from TurtyWurty channel. I made everything, and when i tried to start the game, this appeared: 2020-05-15 21:23:05,465 main WARN Advanced terminal features are not available in this environment �[1;31m[21:23:06] [Render thread/ERROR] [minecraft/ResourceIndex]: Can't find the resource index file: assets\indexes\1.15.json �[m�[32m[21:23:06] [Render thread/INFO] [minecraft/Minecraft]: Setting user: Player533 �[m�[32m[21:23:12] [Render thread/INFO] [minecraft/Minecraft]: Backend library: LWJGL version 3.2.2 build 10 �[m---- Minecraft Crash Report ---- // I'm sorry, Dave. Time: 15.05.20 21:23 Description: Initializing game java.lang.NullPointerException: Initializing game at net.minecraftforge.fml.loading.progress.EarlyProgressVisualization.join(EarlyProgressVisualization.java:40) ~[forge-1.15.2-31.1.0_mapped_snapshot_20190719-1.14.3-launcher.jar:?] {} at net.minecraft.client.Minecraft.<init>(Minecraft.java:371) [forge-1.15.2-31.1.0_mapped_snapshot_20190719-1.14.3.jar:?] {} at net.minecraft.client.main.Main.main(SourceFile:166) [forge-1.15.2-31.1.0_mapped_snapshot_20190719-1.14.3.jar:?] {} at mcp.client.Start.main(Start.java:17) [forge-1.15.2-31.1.0_mapped_snapshot_20190719-1.14.3.jar:?] {} A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at net.minecraftforge.fml.loading.progress.EarlyProgressVisualization.join(EarlyProgressVisualization.java:40) at net.minecraft.client.Minecraft.<init>(Minecraft.java:371) -- Initialization -- Details: Stacktrace: at net.minecraft.client.main.Main.main(SourceFile:166) at mcp.client.Start.main(Start.java:17) -- System Details -- Details: Minecraft Version: 1.15.2 Minecraft Version ID: 1.15.2 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.0_251, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 503656368 bytes (480 MB) / 682622976 bytes (651 MB) up to 1418723328 bytes (1353 MB) CPUs: 4 JVM Flags: 0 total; Launched Version: mcp Backend library: LWJGL version 3.2.2 build 10 Backend API: NO CONTEXT GL Caps: Using VBOs: Yes Is Modded: Definitely; Client brand changed to 'forge' Type: Client (map_client.txt) CPU: <unknown> #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\USER PC\Desktop\apocaliptica\.\crash-reports\crash-2020-05-15_21.23.12-client.txt I tried to run game without any changes in file, clear mdk files. Effect was same. I'm using eclipse, mdk 1.15.2 31.1.0 and java is jdk 1.8.0_251. I hope someone can help me with this...

So, when i was bored, i thought it will be good idea to learn how to make mods. My idea failed because of this error: Description Resource Path Location Type Project 'apocaliptica' is missing required library: 'C:\Users\USER PC\Desktop\mod mc qfl\apocaliptica\unresolved dependency - net.minecraftforge forgeBin 1.12.2-14.23.5.2768' apocaliptica Build path Build Path Problem I tried to find help how to resolve it. Sadly, every idea i saw how to resolve it doesn't worked. I'm using eclipse and jdk 1.8.0_251. And sorry, if your eyes are bleeding after potato english...