mojira.dev
MCL-17485

Launcher files can occasionally become corrupt, causing unexpected behavior

Certain files being corrupt or missing can cause the launcher to behave unexpectedly.
Files becoming corrupt seems to be relatively new.

Windows
Confirmed:

  1. 'game/cef.pak' and 'game/icudtl.dat' : Launcher fails to start, sometimes leaving a process running in the background

  2. 'game/v8_context_snapshot.bin' : Launcher is blank and window title is missing

Observed through testing, not yet confirmed:

  1. 'game/chrome_elf.dll' and 'game/launcher.dll' : Dialogs can appear:
    "Couldn't load launcher core from '<launcher installation dir>\game\launcher.dll': LoadErrorNotPresent"
    "Unable to start the Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft."
    See also: MCL-11754

Workaround
Deleting the game folder in the launcher directory (Usually C:\Program Files (x86)\Minecraft Launcher) and having the launcher redownload the corrupt and/or missing files fixes the issue. Deleting the 'game/.version' file should work too. In the case there is a prompt saying a file is already in use, restart the device then retry the workaround.

Linked issues

MC-223586 minecraft launcher won't open Resolved MC-223651 Minecraft launcher not opening Resolved MC-223805 My Mc Launcher will not launch, even tho i have done everything Resolved MC-226494 Minecraft launcher Eternal Grey Screen Resolved MC-231365 Minecraft Launcher Does Not Work! Resolved

Attachments

Comments 10

Hey, do you have any more information regarding what might cause the files to corrupt?

I have not experienced this issue nearly enough (twice) to narrow down the cause, all I know is that it's relatively recent and can happen. I have started seeing people with this issue, and having them do the above workaround fixes it.

I bought the game and it only shows me that I can only play the demo,what should I do?

[MOD] Greymagic27

That is a different issue, please see MCL-16570

[MOD] Greymagic27

I've just experienced this issue with my launcher being stuck on a grey screen. Managed to solve it by deleting the whole 'game' folder

@unknown, If you are still having issues with the launcher after trying the workaround, you may want to try contacting Community Support

I have the blank launcher bug, and have reinstalled multiple times. but (very randomly) it always keeps going back to the blank launcher every day or two after I reinstall, causing me to reinstall again.

when i enter minecraft they tell me you haven't buy minecraft but i buy minecraft
please anyone can help me for this

@unknown, please contact Community Support for assistance

[Mojang] Mega_Spud (Jay)

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response

Is this still an issue in the latest version?

This ticket will automatically reopen when you reply.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki

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