Uploading a custom skin in Minecraft may sometimes trigger the error message: "Skin images must be 64x64 or 64x32 pixel PNG ...

An important thing to remember here is that you will have to go through this process every time you update Java, so it’s better to try reinstalling Java first to see if that fixes the Exit Code ...

If you've ever wanted to change skins in Minecraft, here's how to dress up however you like, whether you're playing on Java or Bedrock edition.