FTB Launcher stops at Loading minecraft class

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L

LuminaRose

New Member
Jul 29, 2019
3
0
0
Trying to Load up Unleashed Mod Pack but the Launcher stops at loading minecraft class and won't load the loading screen, here the console log in Code, any help would be appreciated

Code: 
[13:13:46] [INFO] LaunchFrame.main:165: FTBLaunch starting up (version 1.2.7)
[13:13:46] [INFO] JGoogleAnalyticsTracker$2.run:483: AnalyticsBackgroundThread started
[13:13:46] [INFO] LaunchFrame.main:166: Java version: 1.7.0_25
[13:13:46] [INFO] LaunchFrame.main:167: Java vendor: Oracle Corporation
[13:13:46] [INFO] LaunchFrame.main:168: Java home: C:\Program Files\Java\jre7
[13:13:46] [INFO] LaunchFrame.main:169: Java specification: Java Virtual Machine Specification version: 1.7 by Oracle Corporation
[13:13:46] [INFO] LaunchFrame.main:171: Java vm: Java HotSpot(TM) 64-Bit Server VM version: 23.25-b01 by Oracle Corporation
[13:13:46] [INFO] LaunchFrame.main:172: OS: amd64 Windows 7 6.1
[13:13:46] [INFO] LocaleUpdater.run:67: [i18n] Checking for updates ...
[13:13:46] [INFO] I18N.setLocale:142: [i18n] enUS English language file loaded!
[13:13:47] [INFO] LocaleUpdater.run:80: [i18n] remoteVer = 10
[13:13:47] [INFO] LocaleUpdater.run:93: [i18n] localVer = 10
[13:13:47] [INFO] LocaleUpdater.run:98: [i18n] Files are up to date
[13:13:47] [INFO] I18N.addFiles:118: [i18n] Fallback enUS loaded
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 0 enUS to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 1 cyGB to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 2 daDK to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 3 deDE to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 4 esES to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 5 frFR to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 6 itIT to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 7 maHU to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 8 nlNL to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 9 ptBR to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 10 ptPT to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 11 ruRU to options pane
[13:13:47] [INFO] OptionsPane.<init>:156: [i18n] Added 12 svSE to options pane
[13:13:47] [INFO] I18N.setLocale:142: [i18n] enUS English language file loaded!
[13:13:48] [INFO] ModpackLoader.run:58: Loading modpack information for modpacks.xml...
[13:13:48] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 1
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 2
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 3
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 4
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 5
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 6
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 7
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 8
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 9
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 10
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 11
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 12
[13:13:49] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 13
[13:13:51] [ERROR] ImageIO.read:-1->ModpackLoader.run:100: Can't get input stream from URL!: javax.imageio.IIOException: Can't get input stream from URL!
javax.imageio.ImageIO.read(Unknown Source)
net.ftb.data.ModPack.<init>(ModPack.java:213)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:89)
[13:13:51] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 14
[13:13:51] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 15
[13:13:51] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 16
[13:13:51] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 17
[13:13:52] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 18
[13:13:52] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 19
[13:13:52] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 20
[13:13:52] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 21
[13:13:52] [INFO] ModpacksPane.onModPackAdded:306: Adding pack 22
[13:13:52] [INFO] MapLoader.run:40: loading map information...
[13:13:52] [INFO] TexturePackLoader.run:40: loading texture pack information...
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 1
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 2
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 3
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 4
[13:13:54] [INFO] TexturepackPane.onTexturePackAdded:219: Adding texture pack 1
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 5
[13:13:54] [INFO] TexturepackPane.onTexturePackAdded:219: Adding texture pack 2
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 6
[13:13:54] [INFO] TexturepackPane.onTexturePackAdded:219: Adding texture pack 3
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 7
[13:13:54] [INFO] TexturepackPane.onTexturePackAdded:219: Adding texture pack 4
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 8
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 9
[13:13:54] [INFO] MapsPane.onMapAdded:222: Adding map 10
[13:13:57] [INFO] LaunchFrame.doLogin:533: Logging in...
[13:13:59] [INFO] LaunchFrame$13.done:592: Login complete.
[13:13:59] [INFO] LaunchFrame.initializeMods:903: Unleashed
[13:13:59] [INFO] ModManager.upToDate:296: Modpack is up to date.
[13:13:59] [INFO] LaunchFrame.installMods:737: dirs mk'd
[13:13:59] [INFO] MinecraftLauncher.setMemory:121: Setting MinMemory to 256
[13:13:59] [INFO] MinecraftLauncher.setMemory:123: Setting MaxMemory to 1024
Loading jars...
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/instMods/OptiFine_1.5.2_HD_U_D5.zip
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/instMods/MinecraftForge.zip
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/minecraft/bin/minecraft.jar
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/minecraft/bin/lwjgl.jar
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/minecraft/bin/lwjgl_util.jar
Added URL to classpath: file:/C:/Users/Kristen%20Savicki/Documents/My%20Games/FTB%20Launcher/Feed%20The%20Beast/Unleashed/minecraft/bin/jinput.jar
Loading natives...
Natives loaded...
Loading minecraft class
 
L

lavarthan

New Member
Jul 29, 2019
2,437
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0
Since this is a copy/paste of a log I'm going to assume that you missed a small, but important line in the log. If the log actually ends with 'mc = class net.minecraft.client.Minecraft' then this is a known problem. Sometimes it gets stuck there and the only known possible fix is to force update. Look here for more info.

If your log does not end in that please post the entire console log in debug mode to pasetbin.com and link to it here. It is really easy, the place where you copied this from has a button that will post it for you and provide a link at the bottom of the console log. Just post that link here. Look here for more info about the logs.
 
L

lavarthan

New Member
Jul 29, 2019
2,437
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Download errors are usually caused by one of two things besides that error earlier. First is the place you have the launcher and mod pack files. Follow the recommended way to install the launcher if you have not already. Please follow it carefully. Your Java version is a little out of date, so it would be good to update it by following the guide as well. The other thing is your AV program stopping the download. If the above guide did not help try adding the ftb folder to the exceptions list to your AV and/or try temporarily deactivating it your AV. Also check out the 'Other USEFUL Information:' first paragraph in the install guide for more info about the AV problems.
 
L

lavarthan

New Member
Jul 29, 2019
2,437
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/Users/cronic_design927/Desktop/FTB/instMods/MinecraftForge.zip
Click to expand...
Welcome. Which pack are you trying to use? If it is a pre-1.6.4 pack you need to update the lwjgl inside the modpack folder to 2.9.0. Please check out this guide to do it. Substitute the ~/Library/Application Support/minecraft folder for '/Users/cronic_design927/Desktop/FTB/minecraft' or what ever the modpack's own minecraft folder is.
 
M

maDUECEgunner

New Member
Jul 29, 2019
4
0
0
lavarthan said:
Welcome. Which pack are you trying to use? If it is a pre-1.6.4 pack you need to update the lwjgl inside the modpack folder to 2.9.0. Please check out this guide to do it. Substitute the ~/Library/Application Support/minecraft folder for '/Users/cronic_design927/Desktop/FTB/minecraft' or what ever the modpack's own minecraft folder is.
Click to expand...

I am using Unleashed. I updated the lwjgl to 2.9.1
I will try 2.9.0 when I get home. I used to be able to play offline about a month ago and that' probably when I was using that one.
 
M

maDUECEgunner

New Member
Jul 29, 2019
4
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0
UniZero said:
The offline mod should be fixed according to the changelog from the 1.3.3 launcher update.
Click to expand...
I am using 1.3.3 and I just tried playing offline and it still froze at loading minecraft class. I will change the lwjgl when I get home from work and hopefully that fixes it.
 
M

maDUECEgunner

New Member
Jul 29, 2019
4
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0
I am able to play Monster offline and I am currently downloading Magic World 2 to see if it will work.

My guess is that there is problem with the fact that Unleashed is 1.5.2 and Monster is 1.6.4

Edit:

Both Magic World 2 and Tech World 2 work offline. There has to be some reason why the 1.6.4 packs work offline but the 1.5.2 ones don't (I tried Unhinged but it crashed)
 
Last edited:
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