Minecraft Forums

I tried 4 different servers and STILL kept on getting it! And I JUST got a premium account SO I COULD PLAY ON THE SERVER!!!!!
D:<

Quote from Zexionidas

If people are still having this error:

-Open Notepad in Admin. Click the Windows Start button and find notepad. Right click it, then hit "Run in Admin".

-Once open, click file, then open and then go to "C:/Windows/System32/drivers/etc". Make sure you have "All files" rather than ".txt files" and then open up "hosts".

-You should be presented with a lot of lines beginning with "#". Ignore these. Go to the bottom and type in EXACTLY this;

184.73.223.40 session.minecraft.net

No need for any #'s (This will render the line useless if I remember correctly).

Save the file, ensuring to overwrite the previous "hosts" file. Close, and start up! Should be all good to go, and I have done it myself!

Literal step by step guide so the newbs can understand!

I've tried that but I end up with another problem.
failed to log in: java.ioFileNotFoundException: http://session.minecraft.net/game/joinsever.jsp? and then all this other random stuff

Quote from THHG

Thanks!
It worked for me
Didn't even have to reboot.

how do i even get to that file

I have a problem with my FTB Launcher

This is what the logs says:

FTB Launcher logs:
[10:57:30] [ERROR] FileOutputStream.open:-2->LaunchFrame.main:207: Could not create LogWriters. Check your FTB installation location write access: java.io.FileNotFoundException: C:\Users\Nathan\Desktop\FTBLauncherLog.txt (Access is denied)
java.io.FileOutputStream.open(Native Method)
java.io.FileOutputStream.<init>(Unknown Source)
java.io.FileOutputStream.<init>(Unknown Source)
net.ftb.log.LogWriter.<init>(LogWriter.java:31)
net.ftb.gui.LaunchFrame.main(LaunchFrame.java:203)
[10:57:30] [DEBUG] LaunchFrame.main:219: FTB Launcher CI Build #: 203, Git SHA: 9b3092c84c648524d65019efecfa000588d7773e
[10:57:30] [INFO] JGoogleAnalyticsTracker$2.run:484: AnalyticsBackgroundThread started
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:33: FTBLaunch starting up (version 1.4.3 Build: 10403)
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:34: Java version: 1.7.0_45
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:35: Java vendor: Oracle Corporation
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:36: Java home: C:\Program Files\Java\jre7
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:37: Java specification: Java Virtual Machine Specification version: 1.7 by Oracle Corporation
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:39: Java vm: Java HotSpot(TM) 64-Bit Server VM version: 24.45-b08 by Oracle Corporation
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:40: OS: Windows 8 6.2 (64-bit)
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:41: Launcher Install Dir: C:\Users\Nathan\Desktop
[10:57:30] [INFO] LaunchFrameHelpers.printInfo:42: System memory: 7953M free, 11461M total
[10:57:30] [ERROR] AbstractPlainSocketImpl.connect:-1->JGoogleAnalyticsTracker.dispatchRequest:460: Error making tracking request: java.net.UnknownHostException: www.google-analytics.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
net.ftb.tracking.google.JGoogleAnalyticsTracker.dispatchRequest(JGoogleAnalyticsTracker.java:451)
net.ftb.tracking.google.JGoogleAnalyticsTracker.access$100(JGoogleAnalyticsTracker.java:74)
net.ftb.tracking.google.JGoogleAnalyticsTracker$2.run(JGoogleAnalyticsTracker.java:499)
[10:57:30] [ERROR] AbstractPlainSocketImpl.connect:-1->JGoogleAnalyticsTracker.dispatchRequest:460: Error making tracking request: java.net.UnknownHostException: www.google-analytics.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
net.ftb.tracking.google.JGoogleAnalyticsTracker.dispatchRequest(JGoogleAnalyticsTracker.java:451)
net.ftb.tracking.google.JGoogleAnalyticsTracker.access$100(JGoogleAnalyticsTracker.java:74)
net.ftb.tracking.google.JGoogleAnalyticsTracker$2.run(JGoogleAnalyticsTracker.java:499)
[10:57:30] [ERROR] OutputOverride.write:45: From Console: Oct 26, 2014 10:57:30 AM java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
[10:57:30] [ERROR] AbstractPlainSocketImpl.connect:-1->PiwikTracker.run:59: Error Contacting tracking server: java.net.UnknownHostException: stats.feed-the-beast.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.HttpURLConnection.getResponseCode(Unknown Source)
net.ftb.tracking.piwik.PiwikTracker.run(PiwikTracker.java:50)
[10:57:30] [ERROR] AbstractPlainSocketImpl.connect:-1->PiwikTracker.run:59: Error Contacting tracking server: java.net.UnknownHostException: stats.feed-the-beast.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.HttpURLConnection.getResponseCode(Unknown Source)
net.ftb.tracking.piwik.PiwikTracker.run(PiwikTracker.java:50)
[10:57:32] [INFO] JavaFinder.parseJavaVersion:166: The FTB Launcher has found the following Java versions installed:
[10:57:32] [INFO] JavaFinder.parseJavaVersion:168: Java Version: 1.7.0_67 sorted as: 1.7.0_67 32 Bit Java at : C:\Program Files (x86)\Java\jre7\bin\java.exe
[10:57:32] [INFO] JavaFinder.parseJavaVersion:168: Java Version: 1.7.0_45 sorted as: 1.7.0_45 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
[10:57:32] [INFO] JavaFinder.parseJavaVersion:168: Java Version: 1.7.0_45 sorted as: 1.7.0_45 64 Bit Java at : C:\WINDOWS\system32\java.exe
[10:57:32] [INFO] JavaFinder.parseJavaVersion:168: Java Version: 1.7.0_67 sorted as: 1.7.0_67 32 Bit Java at : C:\WINDOWS\SysWOW64\java.exe
[10:57:32] [INFO] JavaFinder.parseJavaVersion:168: Java Version: 1.7.0_45 sorted as: 1.7.0_45 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
[10:57:32] [INFO] JavaFinder.parseJavaVersion:194: Preferred: Java Version: 1.7.0_45 sorted as: 1.7.0_45 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
[10:57:32] [INFO] DownloadUtils.run:427: DownloadUtils.run() starting
[10:57:32] [INFO] DownloadUtils.run:477: Primary mirror failed, Trying alternative mirrors
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Miami
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Miami was not accessible, ignoring.miami1.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Nottingham
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Nottingham was not accessible, ignoring.england2.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Grantham
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Grantham was not accessible, ignoring.england3.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Los Angeles
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Los Angeles was not accessible, ignoring.losangeles1.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Atlanta
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Atlanta was not accessible, ignoring.atlanta1.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Atlanta-2
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Atlanta-2 was not accessible, ignoring.atlanta2.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:Maidenhead
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: CreeperHost Server: Maidenhead was not accessible, ignoring.england1.creeperrepo.net
[10:57:32] [INFO] DownloadUtils.parseJSONtoMap:564: Testing Server:CurseCDN
[10:57:32] [WARN] DownloadUtils.parseJSONtoMap:569: Curse Server: CurseCDN was not accessible, ignoring.ftb.cursecdn.com
[10:57:32] [ERROR] DownloadUtils.run:484: Could not find any working mirrors! If you are running a software firewall please allow the FTB Launcher permission to use the internet.
[10:57:32] [INFO] DownloadUtils.run:507: DL ready
[10:57:32] [ERROR] DownloadUtils.run:519: Failed to resolve selected mirror: ftb.cursecdn.com
[10:57:32] [INFO] DownloadUtils.run:539: Using download server Automatic:UNKNOWN on host UNKNOWN (UNKNOWN)
[10:57:32] [DEBUG] Benchmark.logBenchAs:71: Download Utils Init took 51 ms.
[10:57:32] [INFO] I18N.addFiles:91: [i18n] Fallback enUS loaded
[10:57:32] [INFO] I18N.setLocale:114: [i18n] enUS English (US) language file loaded!
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->JGoogleAnalyticsTracker.dispatchRequest:460: Error making tracking request: java.net.UnknownHostException: www.google-analytics.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
net.ftb.tracking.google.JGoogleAnalyticsTracker.dispatchRequest(JGoogleAnalyticsTracker.java:451)
net.ftb.tracking.google.JGoogleAnalyticsTracker.access$100(JGoogleAnalyticsTracker.java:74)
net.ftb.tracking.google.JGoogleAnalyticsTracker$2.run(JGoogleAnalyticsTracker.java:499)
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->JGoogleAnalyticsTracker.dispatchRequest:460: Error making tracking request: java.net.UnknownHostException: www.google-analytics.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
net.ftb.tracking.google.JGoogleAnalyticsTracker.dispatchRequest(JGoogleAnalyticsTracker.java:451)
net.ftb.tracking.google.JGoogleAnalyticsTracker.access$100(JGoogleAnalyticsTracker.java:74)
net.ftb.tracking.google.JGoogleAnalyticsTracker$2.run(JGoogleAnalyticsTracker.java:499)
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->PiwikTracker.run:59: Error Contacting tracking server: java.net.UnknownHostException: stats.feed-the-beast.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.HttpURLConnection.getResponseCode(Unknown Source)
net.ftb.tracking.piwik.PiwikTracker.run(PiwikTracker.java:50)
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->PiwikTracker.run:59: Error Contacting tracking server: java.net.UnknownHostException: stats.feed-the-beast.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.HttpURLConnection.getResponseCode(Unknown Source)
net.ftb.tracking.piwik.PiwikTracker.run(PiwikTracker.java:50)
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 0 enUS to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 1 cyGB to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 2 daDK to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 3 deDE to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 4 enUS to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 5 enGB to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 6 esES to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 7 fiFI to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 8 frFR to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 9 itIT to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 10 nlNL to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 11 noNO to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 12 maHU to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 13 ptBR to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 14 ptPT to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 15 ruRU to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 17 zhCN to options pane
[10:57:33] [INFO] OptionsPane.<init>:153: [i18n] Added 16 svSE to options pane
[10:57:33] [INFO] I18N.setLocale:114: [i18n] enUS English (US) language file loaded!
[10:57:33] [WARN] UnreadNewsWorker.doInBackground:69: Error while checking news: launcher.feed-the-beast.com
[10:57:33] [DEBUG] AuthlibDLWorker.doInBackground:57: Loading Authlib...
[10:57:33] [DEBUG] UpdateChecker.<init>:70: Launcher Install path: C:\Users\Nathan\Desktop\launcher^FTB_Launcher.exe
[10:57:33] [WARN] AbstractPlainSocketImpl.connect:-1->ModpackLoader.run:68: Failed to load modpacks, loading from backup: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.DownloadUtils.downloadToFile(DownloadUtils.java:238)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:66)
[10:57:33] [INFO] ModpackLoader.run:70: Loading modpack information for modpacks.xml...
[10:57:33] [WARN] FileInputStream.open:-2->ModpackLoader.run:75: Failed to read modpack file - falling back to direct download: java.io.FileNotFoundException: C:\Users\Nathan\AppData\Local\ftblauncher\ModPacks\modpacks.xml (The system cannot find the file specified)
java.io.FileInputStream.open(Native Method)
java.io.FileInputStream.<init>(Unknown Source)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:73)
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->ModpackLoader.run:81: Completely unable to download the modpack file - check your connection: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:79)
[10:57:33] [WARN] AbstractPlainSocketImpl.connect:-1->ModpackLoader.run:68: Failed to load modpacks, loading from backup: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.DownloadUtils.downloadToFile(DownloadUtils.java:238)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:66)
[10:57:33] [INFO] ModpackLoader.run:70: Loading modpack information for thirdparty.xml...
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->UpdateChecker.loadInfo:126: Error while loading launcher update info: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.AppUtils.downloadXML(AppUtils.java:51)
net.ftb.updater.UpdateChecker.loadInfo(UpdateChecker.java:88)
net.ftb.updater.UpdateChecker.doInBackground(UpdateChecker.java:79)
net.ftb.updater.UpdateChecker.doInBackground(UpdateChecker.java:42)
javax.swing.SwingWorker$1.call(Unknown Source)
java.util.concurrent.FutureTask.run(Unknown Source)
javax.swing.SwingWorker.run(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
[10:57:33] [WARN] FileInputStream.open:-2->ModpackLoader.run:75: Failed to read modpack file - falling back to direct download: java.io.FileNotFoundException: C:\Users\Nathan\AppData\Local\ftblauncher\ModPacks\thirdparty.xml (The system cannot find the file specified)
java.io.FileInputStream.open(Native Method)
java.io.FileInputStream.<init>(Unknown Source)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:73)
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->ModpackLoader.run:81: Completely unable to download the modpack file - check your connection: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.workers.ModpackLoader.run(ModpackLoader.java:79)
[10:57:33] [DEBUG] ModpackLoader.run:139: All packlists loaded
[10:57:33] [DEBUG] Benchmark.logBenchAs:71: Modpack Loader Init took 10 ms.
[10:57:33] [INFO] MapLoader.run:46: loading map information...
[10:57:33] [DEBUG] UpdateChecker.shouldUpdate:131: updater: buildjenk 203 < betajenk 0|| version 10403 < 0
[10:57:33] [DEBUG] UpdateChecker.shouldUpdate:132: latest = 0
[10:57:33] [INFO] TexturePackLoader.run:46: loading texture pack information...
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->MapLoader.run:61: Error while updating map info: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.AppUtils.downloadXML(AppUtils.java:51)
net.ftb.workers.MapLoader.run(MapLoader.java:47)
[10:57:33] [DEBUG] Benchmark.logBenchAs:71: MapLoader run took 2 ms.
[10:57:33] [ERROR] AbstractPlainSocketImpl.connect:-1->TexturePackLoader.run:61: Error loading texture pack info: java.net.UnknownHostException: ftb.cursecdn.com
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.&lt;init&gt;(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.http.HttpClient.New(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.AppUtils.downloadXML(AppUtils.java:51)
net.ftb.workers.TexturePackLoader.run(TexturePackLoader.java:47)
[10:57:33] [DEBUG] Benchmark.logBenchAs:71: Texture Pack Load took 2 ms.
[10:57:33] [WARN] AuthlibDLWorker.downloadJars:119->AuthlibDLWorker.downloadJars:124: Authlib checksum download failed: java.lang.NullPointerException
net.ftb.workers.AuthlibDLWorker.downloadJars(AuthlibDLWorker.java:119)
net.ftb.workers.AuthlibDLWorker.doInBackground(AuthlibDLWorker.java:60)
net.ftb.workers.AuthlibDLWorker.doInBackground(AuthlibDLWorker.java:42)
javax.swing.SwingWorker$1.call(Unknown Source)
java.util.concurrent.FutureTask.run(Unknown Source)
javax.swing.SwingWorker.run(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
[10:57:33] [ERROR] AuthlibDLWorker.doInBackground:61: Authlib Download Failed
[10:57:34] [DEBUG] Benchmark.logBenchAs:71: Launcher Startup took 4040 ms.
[10:57:34] [DEBUG] Benchmark.logBenchAs:71: Launcher Startup took 4045 ms.
[10:57:34] [DEBUG] Benchmark.logBenchAs:71: Launcher Startup took 4047 ms.

I had this same problem with minecraft and gta5. I had it for about a month. I tried logging I to both last night and failed yet again. So I trolled through my programs and unistalled some things that got downloaded by accident. And they both worked immediately. I would urge everyone with this issue to take a close look at your programs.