[MCL-19358] Failed to verify authentication

There is an error in the game output when starting.

Failed to verify authentication com.mojang.authlib.exceptions.InvalidCredentialsException: Status: 401 at com.mojang.authlib.exceptions.MinecraftClientHttpException.toAuthenticationException(MinecraftClientHttpException.java:56) at com.mojang.authlib.yggdrasil.YggdrasilSocialInteractionsService.checkPrivileges(YggdrasilSocialInteractionsService.java:112) at com.mojang.authlib.yggdrasil.YggdrasilSocialInteractionsService.<init>(YggdrasilSocialInteractionsService.java:42) at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.createSocialInteractionsService(YggdrasilAuthenticationService.java:151) at dvp.a(SourceFile:670) at dvp.<init>(SourceFile:429) at net.minecraft.client.main.Main.main(SourceFile:179) Caused by: MinecraftClientHttpException[type=HTTP_ERROR, status=401, response=null] at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:77) at com.mojang.authlib.minecraft.client.MinecraftClient.get(MinecraftClient.java:47) at com.mojang.authlib.yggdrasil.YggdrasilSocialInteractionsService.checkPrivileges(YggdrasilSocialInteractionsService.java:104) ... 5 more

I tried many ways to try fixing this but it doesn't work. Can someone please help?

PS: I am using Minecraft DEMO, and it says that I have an invalid session ID.

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Comments 2

Enderman! 2021-08-21T18:54:26Z

you have to buy minecraft buy it at buy minecraft at https://www.minecraft.net/en-us/store/minecraft-java-edition

Barnos 2022-02-17T15:02:39Z

Hi there!
Does this issue still occurs to you on newest version of Launcher?
Didi you try the new Launcher from the Microsoft Store?
Do you use VPN on machine you try to log-in?
Could you provide us with more in-depth repro steps?

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