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I get this error when trying to play Minecraft

#1 Nov 27, 2014
SpaceNightrider
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- Join Date: 10/26/2012
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I haven't done anything to this but when I click play this error comes up:

Invalid maximum heap size: -Xmx4G
The specified size exceeds the maximum representable size.

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#2 Nov 27, 2014
Quavelen
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In your launcher, click "Edit Profile" this:

Then edit this line:

To say this:

-Xmx1G -Xms1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

It should resolve your error.
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