I am having an issue with the launching of Technic launcher after I log in.

[FadingFire711]

The launcher validates me logging into the launcher, and I log in properly. It gives me the following error message in Consle after I log in when I try to launch the launcher.

 

Error Message:

[B#663] java.lang.NullPointerException
[B#663]     at net.technicpack.minecraftcore.mojang.auth.MojangUser.refreshToken(MojangUser.java:66)
[B#663]     at net.technicpack.minecraftcore.mojang.auth.MojangUser.<init>(MojangUser.java:60)
[B#663]     at net.technicpack.minecraftcore.mojang.auth.MojangAuthenticator.loginNewUser(MojangAuthenticator.java:69)
[B#663]     at net.technicpack.launcher.ui.LoginFrame.newMojangLogin(LoginFrame.java:584)
[B#663]     at net.technicpack.launcher.ui.LoginFrame.login(LoginFrame.java:431)
[B#663]     at net.technicpack.launcher.ui.LoginFrame.lambda$initComponents$4(LoginFrame.java:256)
[B#663]     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
[B#663]     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
[B#663]     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
[B#663]     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
[B#663]     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
[B#663]     at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
[B#663]     at java.awt.Component.processMouseEvent(Unknown Source)
[B#663]     at javax.swing.JComponent.processMouseEvent(Unknown Source)
[B#663]     at java.awt.Component.processEvent(Unknown Source)
[B#663]     at java.awt.Container.processEvent(Unknown Source)
[B#663]     at java.awt.Component.dispatchEventImpl(Unknown Source)
[B#663]     at java.awt.Container.dispatchEventImpl(Unknown Source)
[B#663]     at java.awt.Component.dispatchEvent(Unknown Source)
[B#663]     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
[B#663]     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
[B#663]     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
[B#663]     at java.awt.Container.dispatchEventImpl(Unknown Source)
[B#663]     at java.awt.Window.dispatchEventImpl(Unknown Source)
[B#663]     at java.awt.Component.dispatchEvent(Unknown Source)
[B#663]     at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
[B#663]     at java.awt.EventQueue.access$500(Unknown Source)
[B#663]     at java.awt.EventQueue$3.run(Unknown Source)
[B#663]     at java.awt.EventQueue$3.run(Unknown Source)
[B#663]     at java.security.AccessController.doPrivileged(Native Method)
[B#663]     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
[B#663]     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
[B#663]     at java.awt.EventQueue$4.run(Unknown Source)
[B#663]     at java.awt.EventQueue$4.run(Unknown Source)
[B#663]     at java.security.AccessController.doPrivileged(Native Method)
[B#663]     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
[B#663]     at java.awt.EventQueue.dispatchEvent(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
[B#663]     at java.awt.EventDispatchThread.run(Unknown Source)
[B#663] Unhandled Exception in Thread[AWT-EventQueue-0,6,main]

 

[Pyker]

This is a known bug, but it does mean that you're trying to login with a Mojang account that doesn't have Minecraft Java edition. Did you migrate your Mojang account to a Microsoft account, or are you using the wrong account?