How do i find those? is it in the minecraft launcher?
This is what it says in the launcher log
[19:42:19 FATAL]: Fatal error launching game. Report this to http://bugs.mojang.com please!
java.io.FileNotFoundException: File '/Users/ellagoldberg/Twitch/Minecraft/Install/assets/indexes/1.15.json' does not exist
at org.apache.commons.io.FileUtils.openInputStream(FileUtils.java:299) ~[launcher.jar:1.6.93]
at org.apache.commons.io.FileUtils.readFileToString(FileUtils.java:1711) ~[launcher.jar:1.6.93]
at net.minecraft.launcher.Launcher.cleanupOrphanedAssets(Launcher.java:298) ~[launcher.jar:1.6.93]
at net.minecraft.launcher.Launcher.performCleanups(Launcher.java:540) ~[launcher.jar:1.6.93]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:209) ~[launcher.jar:1.6.93]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:186) [launcher.jar:1.6.93]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:1.6.93]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:1.6.93]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:1.6.93]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_251]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_251]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_251]
[19:42:19 ERROR]: Game ended with bad state (exit code 1)
[19:42:19 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[19:42:19 INFO]: Deleting /Users/ellagoldberg/Twitch/Minecraft/Install/versions/forge-28.2.4/forge-28.2.4-natives-28291594003820