MultiMC version: 0.7.0-3813

Minecraft folder is:
C:/MultiMC/instances/1.8.91/.minecraft

Java path is:
C:/Program Files (x86)/Common Files/Oracle/Java/javapath/javaw.exe

Checking Java version...
Java is version 1.8.0_391, using 64-bit architecture, from Oracle Corporation.

Main Class:
  net.minecraft.launchwrapper.Launch

Native path:
  C:/MultiMC/instances/1.8.91/natives

Libraries:
  C:/MultiMC/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar
  C:/MultiMC/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar
  C:/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar
  C:/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.jar
  C:/MultiMC/libraries/com/mojang/netty/1.8.8/netty-1.8.8.jar
  C:/MultiMC/libraries/oshi-project/oshi-core/1.1/oshi-core-1.1.jar
  C:/MultiMC/libraries/net/java/dev/jna/jna/3.4.0/jna-3.4.0.jar
  C:/MultiMC/libraries/net/java/dev/jna/platform/3.4.0/platform-3.4.0.jar
  C:/MultiMC/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar
  C:/MultiMC/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar
  C:/MultiMC/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar
  C:/MultiMC/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar
  C:/MultiMC/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar
  C:/MultiMC/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar
  C:/MultiMC/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar
  C:/MultiMC/libraries/io/netty/netty-all/4.0.23.Final/netty-all-4.0.23.Final.jar
  C:/MultiMC/libraries/com/google/guava/guava/17.0/guava-17.0.jar
  C:/MultiMC/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar
  C:/MultiMC/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar
  C:/MultiMC/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar
  C:/MultiMC/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar
  C:/MultiMC/libraries/com/mojang/authlib/1.5.21/authlib-1.5.21.jar
  C:/MultiMC/libraries/com/mojang/realms/1.7.59/realms-1.7.59.jar
  C:/MultiMC/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar
  C:/MultiMC/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar
  C:/MultiMC/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar
  C:/MultiMC/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar
  C:/MultiMC/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9-fixed/log4j-api-2.0-beta9-fixed.jar
  C:/MultiMC/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9-fixed/log4j-core-2.0-beta9-fixed.jar
  C:/MultiMC/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar
  C:/MultiMC/libraries/net/minecraftforge/forge/1.8.9-11.15.1.2318-1.8.9/forge-1.8.9-11.15.1.2318-1.8.9-universal.jar
  C:/MultiMC/libraries/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.jar
  C:/MultiMC/libraries/org/ow2/asm/asm-all/5.0.3/asm-all-5.0.3.jar
  C:/MultiMC/libraries/jline/jline/2.13/jline-2.13.jar
  C:/MultiMC/libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar
  C:/MultiMC/libraries/com/typesafe/config/1.2.1/config-1.2.1.jar
  C:/MultiMC/libraries/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar
  C:/MultiMC/libraries/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar
  C:/MultiMC/libraries/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar
  C:/MultiMC/libraries/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar
  C:/MultiMC/libraries/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar
  C:/MultiMC/libraries/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar
  C:/MultiMC/libraries/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar
  C:/MultiMC/libraries/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar
  C:/MultiMC/libraries/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar
  C:/MultiMC/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar
  C:/MultiMC/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar
  C:/MultiMC/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar
  C:/MultiMC/libraries/com/mojang/minecraft/1.8.9/minecraft-1.8.9-client.jar

Native libraries:
  C:/MultiMC/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-windows.jar
  C:/MultiMC/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar
  C:/MultiMC/libraries/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-64.jar
  C:/MultiMC/libraries/tv/twitch/twitch-external-platform/4.5/twitch-external-platform-4.5-natives-windows-64.jar

Params:
  --username Guccizinho --version 1.8.9 --gameDir C:/MultiMC/instances/1.8.91/.minecraft --assetsDir C:/MultiMC/assets --assetIndex 1.8 --uuid <ID DO PERFIL> --accessToken <TOKEN DE ACESSO> --userProperties {} --userType msa --tweakClass net.minecraftforge.fml.common.launcher.FMLTweaker

Window size: 854 x 480

Java Arguments:
[-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump, -Xms512m, -Xmx1024m, -Duser.language=en]

Minecraft process ID: 12584

Using onesix launcher.

Failed to start Minecraft:
java.lang.UnsatisfiedLinkError: Could not load library. Reasons: [no jansi in java.library.path, C:\Users\Usurio\AppData\Local\Temp\jansi-64-1573811593152769368.dll: Can't find dependent libraries]
    at org.fusesource.hawtjni.runtime.Library.doLoad(Library.java:182)
    at org.fusesource.hawtjni.runtime.Library.load(Library.java:140)
    at org.fusesource.jansi.internal.Kernel32.<clinit>(Kernel32.java:37)
    at org.fusesource.jansi.WindowsAnsiOutputStream.<clinit>(WindowsAnsiOutputStream.java:52)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.apache.logging.log4j.core.appender.ConsoleAppender.getOutputStream(ConsoleAppender.java:128)
    at org.apache.logging.log4j.core.appender.ConsoleAppender.getManager(ConsoleAppender.java:104)
    at org.apache.logging.log4j.core.appender.ConsoleAppender.createAppender(ConsoleAppender.java:99)
    at org.apache.logging.log4j.core.config.DefaultConfiguration.<init>(DefaultConfiguration.java:54)
    at org.apache.logging.log4j.core.LoggerContext.<init>(LoggerContext.java:63)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:217)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:114)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:81)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:83)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:34)
    at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:387)
    at net.minecraft.launchwrapper.LogWrapper.configureLogging(LogWrapper.java:14)
    at net.minecraft.launchwrapper.LogWrapper.log(LogWrapper.java:28)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:94)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:243)
    at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:278)
    at org.multimc.EntryPoint.listen(EntryPoint.java:143)
    at org.multimc.EntryPoint.main(EntryPoint.java:34)
Exiting with -1
O processo foi encerrado com o código de saída -1 (0xffffffffffffffff).
Lembre-se de que o código de saída e a descrição são insuficientes para diagnosticar problemas!
Sempre envie o log inteiro e não só o código de saída.
Clipboard copy at: 11 Nov 2023 13:32:57 -0300
Clipboard copy at: 11 Nov 2023 13:32:57 -0300
Clipboard copy at: 11 Nov 2023 13:32:58 -0300

 

I can only open minecraft in MultiMC, in minecraft launcher it won't work. I already unistalled Minecraft, Minecraft Launcher, MultiMC, Javas, and even I formatted my pc it just doens't open. Like it appears to be a just Forge Problem, i need help :(

In the log you post MultiMC is crashing this is no problem with forge.

If you have problems with forge post a related log.

I can open all normal minecraft versions, just in forge it happens, and i'm only using MultiMC, because my launcher is not working

2 hours ago, Luis_ST said:

If you have problems with forge post a related log.

Then please do that

Sorry, im kinda dumb, what is a related log??

A log that contains something that indicates that you are using forge and because of this the game crashes whether forge or a mod is causing the problem does not matter.

Because the log you posted contains a crash from multimc and not from forge.