Minecraft Forums

i join a server and then i get this error

Internal Exception: Java.lang.NullPointerException

please help.

12:03:39
launcher
main
warn
Couldn't get hash for org/spongepowered/mixin/0.7.7-SNAPSHOT/mixin-0.7.7-SNAPSHOT.jar from http://dl.liteloader.com/versions/org/spongepowered/mixin/0.7.7-SNAPSHOT/mixin-0.7.7-SNAPSHOT.jar.sha1: HTTP 404: Not Found


12:03:39
launcher
main
warn
Couldn't get hash for 1.12.2 jar from https://s3.amazonaws.com/Minecraft.Download/versions/1.12.2/1.12.2.jar.sha1: HTTP 403: Forbidden


12:03:39
launcher
main
warn
Have local file C:/Users\mrwhy_5wkmzcz\AppData\Roaming\.minecraft\versions\1.12.2/1.12.2.jar but don't know what size or hash it should be. Have to assume it's good.


12:03:40
launcher
main
warn
Have local file C:/Users\mrwhy_5wkmzcz\AppData\Roaming\.minecraft\libraries\org/spongepowered/mixin/0.7.7-SNAPSHOT/mixin-0.7.7-SNAPSHOT.jar but don't know what size or hash it should be. Have to assume it's good.


12:03:59
mixin
main
error
Mixin config mixins.capi.json does not specify "minVersion" property


12:03:59
mixin
main
error
Mixin config mixins.client.json does not specify "minVersion" property


12:04:15
bid
main
warn
Skipping bad option: lastServer:


12:05:17
Impact
main
warn
Checking for Updates


12:05:24
Impact
main
fatal
Unable to load spam config file: Spam config file is in invalid format


12:05:27
bib
main
error
########## GL ERROR ##########


12:05:27
bib
main
error
@ Pre render


12:05:27
bib
main
error
1280: Invalid enum


12:07:09
bib
main
fatal

Unreported exception thrown!
java.lang.NullPointerException
at bjc.a(SourceFile:31)
at bjb.a(SourceFile:142)
at bjb.a(SourceFile:132)
at bjb.a(SourceFile:128)
at me.zero.clarinet.T.b(T.java)
at me.zero.clarinet.f3.lambda$null$3(f3.java)
at me.zero.clarinet.f3$$Lambda$1158/976011906.accept(Unknown Source)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at me.zero.clarinet.f3.lambda$new$4(f3.java)
at me.zero.clarinet.f3$$Lambda$905/788374333.invoke(Unknown Source)
at me.zero.alpine.listener.Listener.invoke(Listener.java:93)
at me.zero.alpine.EventManager.lambda$post$5(EventManager.java:91)
at me.zero.alpine.EventManager$$Lambda$1148/738104132.accept(Unknown Source)
at java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:890)
at me.zero.alpine.EventManager.post(EventManager.java:91)
at bib.handler$preRunTick$zzm000(SourceFile:3181)
at bib.t(SourceFile)
at bib.az(SourceFile:1000)
at bib.a(SourceFile:419)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)