Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

The Java JAR file could not be launched. On a mac


chezpaul
 Share

Recommended Posts

Hey everyone,

 

I'm trying to extract the files from forge-1.12.2-14.23.5.2854-universal.jar.

I've done this before, many time to create a technicpack modpack. I'm running java 8 v212 and just updated to Mac OS X Catalina 10.15.6

When I double click the  forge-1.12.2-14.23.5.2854-universal.jar file, I get an error window saying The Java JAR file "forge-1.12.2-14.23.5.2854-universal.jar" could not be launched.

So okay , this happened to me a month ago for the first time and I was able in terminal to run it by typing java -jar ~/users/user/Desktop/forge-1.12.2-14.23.5.2854-universal.jar

But now when I try it in the terminal, I get this:

 

We appear to be missing one or more essential library files.

You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch

at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)

at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:348)

at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:52)

at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)

 

I can't find anything online regarding this little problem. 

 

Would anyone know anything about this?

 

Thanks

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.
 Share



×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy.