Minecraft Java crashes immediately after launch and displays this message.
Java Virtual Machine Launcher
Error: Could not create the java Virtual Machine.
Error: a Fatal exception has occurred. Program will exit.
Note: 1.17 rc2 and earlier updates still work.
Downloading Java Runtime java-runtime-alpha:16.0.1.9.1
23:48:41.677
Extracting 8 files!
23:48:42.275
Using default game log configuration client-1.12.xml (outputs XML)
23:48:42.276
Installing versions!
23:49:09.062
Unrecognized VM option 'UseConcMarkSweepGC'
Comments 2
Remove the UseConcMarkSweepGC command line argument from the profile in the launcher.
If that didn't help, please contact Community Support for assistance and refer to this ticket (e.g. "I have reported this issue on Mojira as MC-XYZ.").
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
It's possible to attach crash reports and logs.
https://minecrafthopper.net/help/guides/getting-minecraft-jvm-crash-report/