Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Mojang JIRA by Sean Moran, 1 year ago
Cannot get property bco{name=half, clazz=class atn, values=[upper, lower]} as it does not exist in bby{block=minecraft:air, properties=[]}
via mojang.com by Unknown author, 2 years ago
Cannot get property bco{name=half, clazz=class atn, values=[upper, lower]} as it does not exist in bby{block=minecraft:air, properties=[]}
java.lang.IllegalArgumentException: Cannot get property bco{name=half, clazz=class atn, values=[upper, lower]} as it does not exist in bby{block=minecraft:air, properties=[]}	at undefined.bcb.b(SourceFile:112)	at undefined.atm.a(SourceFile:152)	at undefined.zi.d(SourceFile:29)	at undefined.yr.a(SourceFile:91)	at undefined.xb.bD(SourceFile:458)	at undefined.xa.l(SourceFile:1431)