problems downloading mods

[Davide00]

when I try to download a new mod a flash starts and after that it freezes everything by printing the following error in the logs:

java.lang.NoClassDefFoundError: org/eclipse/aether/impl/DefaultServiceLocator$ErrorHandler
    at net.technicpack.minecraftcore.install.tasks.HandleVersionFileTask.<init>(HandleVersionFileTask.java:60)
    at net.technicpack.launcher.launch.Installer.buildTasksQueue(Installer.java:282)
    at net.technicpack.launcher.launch.Installer$1.run(Installer.java:114)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.eclipse.aether.impl.DefaultServiceLocator$ErrorHandler
    at java.net.URLClassLoader.findClass(Unknown Source)
    at com.regexlab.j2e.Jar2ExeClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 4 more

 

as version of java i am using 1.8.0_251

[Lord Ptolemy]

Please provide an uncropped screenshot here or via PM of you logged into the Technic launcher.

[Lord Ptolemy]

Locked. No response. Cracked launcher is assumed.