I now have a new issue

[Maxgamer2]

Ok so my new problem is this:

Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes

at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:284)

at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:238)

at java.util.jar.JarVerifier.processEntry(JarVerifier.java:273)

at java.util.jar.JarVerifier.update(JarVerifier.java:228)

at java.util.jar.JarFile.initializeVerifier(JarFile.java:383)

at java.util.jar.JarFile.getInputStream(JarFile.java:450)

at sun.misc.URLClassPath$JarLoader$2.getInputStream(URLClassPath.java:776)

at sun.misc.Resource.cachedInputStream(Resource.java:77)

at sun.misc.Resource.getByteBuffer(Resource.java:160)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:442)

at java.net.URLClassLoader.access$100(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:367)

at java.net.URLClassLoader$1.run(URLClassLoader.java:361)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:360)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)

Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

 

I have no idea what it means. I hope it's an easy fix and not super complex.

[Maxgamer2]

I am using client, but the installer wasn't working so I had to manually do it so something could have gone astray.

[Maxgamer2]

When I use the installer I get this:

 

These libraries failed to download. Try again.

 

com.typesafe.akka:akka-actor_2.11:2.3.3, com.typesafe:config:1.2.1, org.scala-actors-migration_2.11:1.1.0, org.scala-lang.plugins:scala-continuations-library_2.11:1.0.2, org.scala-lang.plugins: scala-continuations-plugin_2.11.1:1.0.2, org.scala-lang:scala-library:2.11.1, org.scala-lang:scala--parser-combinators_2.11:1.0.1, org.scala-lang:scala-reflect:2.11.1, org.scala-lang:scala-swing_2.11:1.0.1, org.scala-lang:scala-xml_2.11:1.0.2

[Maxgamer2]

I looked at my fire wall setting and can't find it

[Maxgamer2]

What should I look for??