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Forge is not working after upgrade.

Posted May 24, 20223 yr

So I upgraded Forge. Now Minecraft refuses to even start. There is no crash report. It just doesn't load AT ALL. And I get this:

Preparing to launch minecraft client for 1.18.2-forge-40.1.21

21:49:50.962

launcher

main

Minecraft client 1.18.2-forge-40.1.21 is ready to start.

21:49:50.962

launcher

main

Starting!

21:49:51.602

launcher

main

Version does not support log configuration, will assume one plaintext entry per line

21:49:51.720

game

Error occurred during initialization of VM

21:49:51.720

game

Too small maximum heap

21:49:51.745

monitor

Process Monitor

Process crashed with exit code 1

Quote

May 24, 20223 yr

Could you please do the following.

Provide Your Machines RAM size total in GB

open your launcher and goto installations, click edit then click on the dropdown that says "more options"

you will see a line that says JVM arguments

copy that line and paste it. It seems as if there may not be enough memory for it to run but im not 100% sure

Quote

May 24, 20223 yr

Author

I have 64 GB of RAM. I have Minecraft set to run at 20GB and have it using all 4 cores...

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May 24, 20223 yr

Author

I think that I have figured out the issue. I am testing now. But here is what you asked for:

-Xmx20G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

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May 24, 20223 yr

-XX:G1HeapRegionSize= this may be the issue however im not sure. try increasing to a higher number but take note of the old one just in case

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May 24, 20223 yr

Author

what do you suggest I increase it to??? 50M? Lower? Higher?

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May 24, 20223 yr

try 64M

Quote

May 24, 20223 yr

Author

will do hold on and I will let you know my results....

Quote

May 24, 20223 yr

Author

Well that was fatal...

22:58:24.679

launcher

main

Preparing to launch minecraft client for 1.18.2-forge-40.1.21

22:58:44.723

launcher

main

Minecraft client 1.18.2-forge-40.1.21 is ready to start.

22:58:44.723

launcher

main

Starting!

22:58:45.312

launcher

main

Version does not support log configuration, will assume one plaintext entry per line

22:58:45.781

game

size_t G1HeapRegionSize=67108864 is outside the allowed range [ 0 ... 33554432 ]

22:58:45.781

game

Improperly specified VM option 'G1HeapRegionSize=64M'

and JAVA says: A fatal error has occured and the program will now exit.

Quote

May 24, 20223 yr

hmm, thats unusual try setting it back as it seems to only accept 32M. im stumped for what could be wrong.

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Forge is not working after upgrade.

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