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at java.util.Objects.requireNonNull(Unknown Source) ~[?:1.8.0_131] {}
at java.util.Optional.<init>(Unknown Source) ~[?:1.8.0_131] {}
at java.util.Optional.of(Unknown Source) ~[?:1.8.0_131] {}
at com.mojang.datafixers.util.Either$Left.left(Either.java:54) ~[datafixerupper-4.0.26.jar:?] {}
去掉datafixerupper或者更新它 |
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