Posted December 21, 20168 yr When creating a world or trying to open an existing world I get this error, I tested on a clean minecraft installation, but when I add some mods the error came back If a press the yes button minecraft crashes, if a press no it return to the main menu.
December 21, 20168 yr If it crashes, post the crash log. Don't PM me with questions. They will be ignored! Make a thread on the appropriate board for support. 1.12 -> 1.13 primer by williewillus. 1.7.10 and older versions of Minecraft are no longer supported due to it's age! Update to the latest version for support. http://www.howoldisminecraft1710.today/
December 22, 20168 yr Author I found a way to fix it, I create a world then I enter the file of the world, I copy level.dat and rename it to level.dat_old, it worked! I still don't know what's happening edit: tried to enter the world again, still getting the message
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