Minecraft Forums

Today, i tried to play minecraft 1.7.4, but when i pressed play, i got an error message saying:

Error: Could Not Create The Java Virtual Machine
Error: A Fatal Exception Has Occurred. Program Will Exit

And when i tried to play a modded version of 1.6.4, it worked fine.
Does anyone know how to fix this?

Maybe you have a suckier laptop than me, which I thought wasn't possible.

Very interesting. I know that when I got that error, I had to update my java.(This was ages ago though, and no versions worked). Its strange that it works on 1.6 and not 1.7. I wonder if something went screwy with your 1.7 install. Personally, I would go into the versions folder, delete all 1.7 jars, and start over. The way its structured now your saves and stuff should be safe. Good luck.(Remember to backup your saves just in case!)

Edit: Just an afterthought. 1.7 does have alot more going on than 1.6, perhaps your rig can't handle it. Did it ever work?

Quote from JSPRINGY

Very interesting. I know that when I got that error, I had to update my java.(This was ages ago though, and no versions worked). Its strange that it works on 1.6 and not 1.7. I wonder if something went screwy with your 1.7 install. Personally, I would go into the versions folder, delete all 1.7 jars, and start over. The way its structured now your saves and stuff should be safe. Good luck.(Remember to backup your saves just in case!)

Edit: Just an afterthought. 1.7 does have alot more going on than 1.6, perhaps your rig can't handle it. Did it ever work?

It used to work fine on 1.7, but now i get that error message.

Quote from Astro3905

It used to work fine on 1.7, but now i get that error message.

Ok then. Sounds like something corrupted then, try the reinstal, see if that scrubs it away.

Quote from JSPRINGY

Ok then. Sounds like something corrupted then, try the reinstal, see if that scrubs it away.

Ok, thank you.

Quote from JSPRINGY

Very interesting. I know that when I got that error, I had to update my java.(This was ages ago though, and no versions worked). Its strange that it works on 1.6 and not 1.7. I wonder if something went screwy with your 1.7 install. Personally, I would go into the versions folder, delete all 1.7 jars, and start over. The way its structured now your saves and stuff should be safe. Good luck.(Remember to backup your saves just in case!)

Edit: Just an afterthought. 1.7 does have alot more going on than 1.6, perhaps your rig can't handle it. Did it ever work?

I deleted all the 1.7 jars, including the snapshots, but i still get the error.

Quote from webrosc

are you trying to give minecraft more RAM?
the crash is java related and it can't allocate the RAM to run

I did try to give it more ram, so that must be it, but how do i give it less ram?

Just lower the value down to something like 500M:

Place this in the JVM arguements field in the launcher profile:

-Xms512M -Xmx512M

about half a GB is all it needs, Unless using a HD texture pack or lots of mods. ^

Ok, its working now, thanks for the help everyone :3