[Does Forge work with the latest version of Java?]

This issue could be that you're using the wrong version of Java 8:

 

For example, here's a list of the most common java versions:

 

Java 7 - 32 Bit

Java 7 - 64 Bit

Java 8 - 32 Bit

Java 8 - 64 Bit

 

Try uninstalling Java 8 (If its 32bit) and install Java 8 64 Bit. This might (not sure) but might be the issue that is causing Forge not to work for you.

 

 

Another more possible solution:

 

You've not installed the library files that come with the forge download. You may have wrongly installed Forge and might be required to reinstall forge completely.

I noticed that your log file includes:

[embed=425,349]Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/logging/log4j/Level[/embed]

Could this be that your forge installation is not able to locate required library files?

 

I'm using the latest version of Java 8, update 91 (jre1.8.0_91) . My operating system is 64-bit, and use the 64-bit version of java. No issues with that.  and I tried to install Forge again but it is useless  :'(

 

There must be another solution 

 

Thanks anyway.

 

[Does Forge work with the latest version of Java?]

What launcher are you using?

 

I'm using this: <redacted>

Why do you ask about that?

 

 

 

[Does Forge work with the latest version of Java?]

I can not play this version of forge: 1.9.4-forge1.9.4-12.17.0.1910-1.9.4

 

I don't install any mod.

 

This is the error message:

 

---- UNA VEZ INICIADO EL JUEGO PUEDES CERRAR ESTA VENTANA ----

Buscando archivos nativos antiguos para limpiar...

Cliente> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/logging/log4j/Level

Cliente> at net.minecraft.launchwrapper.Launch.launch(Launch.java:94)

Cliente> at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Cliente> Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.Level

Cliente> at java.net.URLClassLoader.findClass(Unknown Source)

Cliente> at java.lang.ClassLoader.loadClass(Unknown Source)

Cliente> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

Cliente> at java.lang.ClassLoader.loadClass(Unknown Source)

Cliente> ... 2 more

El juego termino de forma incorrecta (exit code 1)

Borrando C:\Users\Juan Cruz\AppData\Roaming\.minecraft\versions\1.9.4-forge1.9.4-12.17.0.1910-1.9.4\1.9.4-forge1.9.4-12.17.0.1910-1.9.4-natives-121098460901542

 

Sorry for the error message in Spanish. That's my native language  I hope no one has any problem with that , but I have to use the forums to solve my problem 

 

 

What is the problem?

 

What can I do? Do I need Java 7? Does Forge work with the latest version of Java?

Do I need to uninstall java 8 and install java 7?

Does this brings troubles running my pc?

Do I have another option?

 

 

Thank you  !