Salad_Lad_4_Hire Posted August 27 Posted August 27 I have been receiving an error while trying to join a friends world while using the "Project Architect 2" modpack with the "essential mod" added on. All mods are updated and all modloaders are up to date. The error specifically says " The game crashed whilst ticking screen Error: java.lang.NullPointerException: Cannot invoke "org.apache.commons.lang3.tuple.Pair.getLeft()" because the return value of "java.util.Map.get(Object)" is null " Exit code: -1 Any advice? I also cannot get this friend to join my world, I can get other friends to join no issue though. No error codes from them cause they are a little "Tech Slow" Quote
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