(Resolved) Launcher throwing Java errors and not working

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RadioactiveSand

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Jul 29, 2019
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I'm on a fresh install of win7 x64, the FTB launcher, and the latest Java (7u51) for both x86 and x64. Restarted after installing Java and then ran the FTB launcher. The launcher downloaded the mod pack, maps, and texture lists fine but then thats where the good times ended. Upon selecting any modpack and hitting Launch the errors start.
First, I get this charming message in a dialog box:
Code:
IOException, minecraft servers might be down. Check @ help.mojang.com
which is then followed by yet another dialog box which simply states:
Login failed:
At which point yet another dialog box pops up asking if I would like to play in offline mode. Selecting No works as its supposed to; the dialog box closes and thats it. Selecting Yes on the other hand does not work as its supposed to and the dialog box does not close until I select No. If I have the Direwolf20 1.6.4 pack selected the following gets dumped into the console:
From Console: java.io.FileNotFoundException: C:\Users\User\Game Files\Minecraft\FTB\versions\1.6.4\1.6.4.json (The system cannot find the path specified)
From Console: at java.io.FileInputStream.open(Native Method)
From Console: at java.io.FileInputStream.<init>(Unknown Source)
From Console: at java.io.FileReader.<init>(Unknown Source)
From Console: at net.feed_the_beast.launcher.json.JsonFactory.loadVersion(JsonFactory.java:29)
From Console: at net.ftb.gui.LaunchFrame.launchMinecraftNew(LaunchFrame.java:1139)
From Console: at net.ftb.gui.dialogs.PlayOfflineDialog$1.actionPerformed(PlayOfflineDialog.java:54)
From Console: at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
From Console: at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
From Console: at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
From Console: at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
From Console: at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
From Console: at java.awt.Component.processMouseEvent(Unknown Source)
From Console: at javax.swing.JComponent.processMouseEvent(Unknown Source)
From Console: at java.awt.Component.processEvent(Unknown Source)
From Console: at java.awt.Container.processEvent(Unknown Source)
From Console: at java.awt.Component.dispatchEventImpl(Unknown Source)
From Console: at java.awt.Container.dispatchEventImpl(Unknown Source)
From Console: at java.awt.Component.dispatchEvent(Unknown Source)
From Console: at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
From Console: at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
From Console: at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
From Console: at java.awt.Container.dispatchEventImpl(Unknown Source)
From Console: at java.awt.Window.dispatchEventImpl(Unknown Source)
From Console: at java.awt.Component.dispatchEvent(Unknown Source)
From Console: at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
From Console: at java.awt.EventQueue.access$200(Unknown Source)
From Console: at java.awt.EventQueue$3.run(Unknown Source)
From Console: at java.awt.EventQueue$3.run(Unknown Source)
From Console: at java.security.AccessController.doPrivileged(Native Method)
From Console: at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
From Console: at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
From Console: at java.awt.EventQueue$4.run(Unknown Source)
From Console: at java.awt.EventQueue$4.run(Unknown Source)
From Console: at java.security.AccessController.doPrivileged(Native Method)
From Console: at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
From Console: at java.awt.EventQueue.dispatchEvent(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
From Console: at java.awt.WaitDispatchSupport$2.run(Unknown Source)
From Console: at java.awt.WaitDispatchSupport$4.run(Unknown Source)
From Console: at java.security.AccessController.doPrivileged(Native Method)
From Console: at java.awt.WaitDispatchSupport.enter(Unknown Source)
From Console: at java.awt.Dialog.show(Unknown Source)
From Console: at java.awt.Component.show(Unknown Source)
From Console: at java.awt.Component.setVisible(Unknown Source)
From Console: at java.awt.Window.setVisible(Unknown Source)
From Console: at java.awt.Dialog.setVisible(Unknown Source)
From Console: at net.ftb.gui.LaunchFrame$13.done(LaunchFrame.java:618)
From Console: at javax.swing.SwingWorker$5.run(Unknown Source)
From Console: at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source)
From Console: at sun.swing.AccumulativeRunnable.run(Unknown Source)
From Console: at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source)
From Console: at javax.swing.Timer.fireActionPerformed(Unknown Source)
From Console: at javax.swing.Timer$DoPostEvent.run(Unknown Source)
From Console: at java.awt.event.InvocationEvent.dispatch(Unknown Source)
From Console: at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
From Console: at java.awt.EventQueue.access$200(Unknown Source)
From Console: at java.awt.EventQueue$3.run(Unknown Source)
From Console: at java.awt.EventQueue$3.run(Unknown Source)
From Console: at java.security.AccessController.doPrivileged(Native Method)
From Console: at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
From Console: at java.awt.EventQueue.dispatchEvent(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
From Console: at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
From Console: at java.awt.EventDispatchThread.run(Unknown Source)
and if I have the Unleashed 1.5.2 pack selected it doesn't generate any Java errors but doesn't actually do anything either.
Not loading any instMods (minecraft jar mods), as the directory does not exist.
The FTB Launcher has found the following Java versions installed:
The FTB Launcher has found the following Java versions installed:
Java Path: C:\Program Files\Java\jre7\bin\javaw.exe
Setting MinMemory to 256
Setting MaxMemory to 2048
Loading jars...
Added URL to classpath: file:/C:/Users/User/Game%20Files/Minecraft/FTB/instMods/MinecraftForge.zip
Added URL to classpath: file:/C:/Users/User/Game%20Files/Minecraft/FTB/minecraft/bin/minecraft.jar
Added URL to classpath: file:/C:/Users/User/Game%20Files/Minecraft/FTB/minecraft/bin/lwjgl.jar
Added URL to classpath: file:/C:/Users/User/Game%20Files/Minecraft/FTB/minecraft/bin/lwjgl_util.jar
Added URL to classpath: file:/C:/Users/User/Game%20Files/Minecraft/FTB/minecraft/bin/jinput.jar
Loading natives...
Natives loaded...
Loading minecraft class
Despite saying its loaded the natives, it hasn't nor has it even downloaded the natives.

So my question is simply thus: How do I get the Launcher to actually download and Launch anything? I've already tried completely reinstalling Java, the FTB Launcher (by removing all related files including those in AppData/Roaming), and added exceptions to the firewall for both the FTB Launcher and Java.
edit: And yes, I've checked and the mojang servers are NOT down.
 

SatanicSanta

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Jul 29, 2019
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Have you checked to make sure the file path in the Options tab is correct?
Code:
java.io.FileNotFoundException: C:\Users\User\Game Files\Minecraft\FTB\versions\1.6.4\1.6.4.json (The system cannot find the path specified)
That's what seems the problem is, which then causes a ton of errors based around not being able to find the Minecraft jar file.
 
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RadioactiveSand

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Jul 29, 2019
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That's what seems the problem is, which then causes a ton of errors based around not being able to find the Minecraft jar file.

Its a fresh install. It can't find the minecraft.jar file because it hasn't downloaded it yet.

Mysteriously enough it started working now after I restarted my router. And now I feel like a derp for not trying that sooner.
 
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