the launcher is not loading the versions

well when i open my minecraft launcher it doesn't load the versions here is the launcher log:
[10:08:37 INFO]: Minecraft Launcher 1.6.11 (through bootstrap 100) started on windows...
[10:08:37 INFO]: Current time is May 24, 2015 10:08:37 AM
[10:08:37 INFO]: System.getProperty('os.name') == 'Windows 7'
[10:08:37 INFO]: System.getProperty('os.version') == '6.1'
[10:08:37 INFO]: System.getProperty('os.arch') == 'amd64'
[10:08:37 INFO]: System.getProperty('java.version') == '1.8.0_25'
[10:08:37 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[10:08:37 INFO]: System.getProperty('sun.arch.data.model') == '64'
[10:08:37 INFO]: proxy == DIRECT
[10:08:37 INFO]: JFX is already initialized
[10:08:37 INFO]: Refreshing local version list...
[10:08:38 ERROR]: Couldn't load local version C:\Users\HP EliteBook\AppData\Roaming\.minecraft\versions\1.7.10-Forge10.13.0.1197\1.7.10-Forge10.13.0.1197.json
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:176) ~[launcher.jar:1.6.11]
at com.google.gson.Gson.fromJson(Gson.java:803) ~[launcher.jar:1.6.11]
at com.google.gson.Gson.fromJson(Gson.java:768) ~[launcher.jar:1.6.11]
at com.google.gson.Gson.fromJson(Gson.java:717) ~[launcher.jar:1.6.11]
at com.google.gson.Gson.fromJson(Gson.java:689) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.LocalVersionList.refreshVersions(LocalVersionList.java:46) [launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.refreshVersions(MinecraftVersionManager.java:58) [launcher.jar:1.6.11]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:132) [launcher.jar:1.6.11]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1
at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:374) ~[launcher.jar:1.6.11]
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:165) ~[launcher.jar:1.6.11]
... 12 more
[10:08:38 INFO]: Refreshing remote version list...
[10:08:40 INFO]: Refresh complete.
[10:08:41 ERROR]: Unexpected exception refreshing profile list
java.lang.IllegalArgumentException: Version cannot be null
at net.minecraft.launcher.updater.VersionList.getCompleteVersion(VersionList.java:61) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:210) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:253) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:240) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:169) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:103) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.game.GameLaunchDispatcher.getStatus(GameLaunchDispatcher.java:35) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.checkState(PlayButtonPanel.java:94) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.onProfilesRefreshed(PlayButtonPanel.java:90) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.profile.ProfileManager.fireRefreshEvent(ProfileManager.java:83) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.profile.ProfileManager.loadProfiles(ProfileManager.java:71) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:138) [launcher.jar:1.6.11]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[10:08:41 INFO]: Refreshing auth...
[10:08:41 INFO]: Logging in with access token
[10:08:41 FATAL]: Unhandled exception in thread Thread[AWT-EventQueue-0,6,main]
java.lang.IllegalArgumentException: Version cannot be null
at net.minecraft.launcher.updater.VersionList.getCompleteVersion(VersionList.java:61) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:210) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:253) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:240) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:169) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:103) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel.checkState(PlayerInfoPanel.java:96) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel$2.run(PlayerInfoPanel.java:78) ~[launcher.jar:1.6.11]
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) ~[?:1.8.0_25]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744) ~[?:1.8.0_25]
at java.awt.EventQueue.access$400(EventQueue.java:97) ~[?:1.8.0_25]
at java.awt.EventQueue$3.run(EventQueue.java:697) ~[?:1.8.0_25]
at java.awt.EventQueue$3.run(EventQueue.java:691) ~[?:1.8.0_25]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25]
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) ~[?:1.8.0_25]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:714) ~[?:1.8.0_25]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [?:1.8.0_25]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [?:1.8.0_25]
[10:08:42 ERROR]: Unhandled exception in executor com.mojang.launcher.updater.ExceptionalThreadPoolExecutor$ExceptionalFutureTask@54db8731
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Version cannot be null
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
at com.mojang.launcher.updater.ExceptionalThreadPoolExecutor$ExceptionalFutureTask.done(ExceptionalThreadPoolExecutor.java:58) [launcher.jar:1.6.11]
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:384) [?:1.8.0_25]
at java.util.concurrent.FutureTask.setException(FutureTask.java:251) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:271) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.lang.IllegalArgumentException: Version cannot be null
at net.minecraft.launcher.updater.VersionList.getCompleteVersion(VersionList.java:61) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:210) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:253) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:240) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:169) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:103) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.game.GameLaunchDispatcher.getStatus(GameLaunchDispatcher.java:35) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.checkState(PlayButtonPanel.java:94) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.onProfilesRefreshed(PlayButtonPanel.java:90) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.profile.ProfileManager.fireRefreshEvent(ProfileManager.java:83) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:220) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:168) ~[launcher.jar:1.6.11]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
... 3 more
[10:08:42 FATAL]: Unhandled exception in thread Thread[AWT-EventQueue-0,6,main]
java.lang.IllegalArgumentException: Version cannot be null
at net.minecraft.launcher.updater.VersionList.getCompleteVersion(VersionList.java:61) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:210) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:253) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:240) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:169) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:103) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel.checkState(PlayerInfoPanel.java:96) ~[launcher.jar:1.6.11]
at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel$2.run(PlayerInfoPanel.java:78) ~[launcher.jar:1.6.11]
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) ~[?:1.8.0_25]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744) ~[?:1.8.0_25]
at java.awt.EventQueue.access$400(EventQueue.java:97) ~[?:1.8.0_25]
at java.awt.EventQueue$3.run(EventQueue.java:697) ~[?:1.8.0_25]
at java.awt.EventQueue$3.run(EventQueue.java:691) ~[?:1.8.0_25]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25]
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) ~[?:1.8.0_25]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:714) ~[?:1.8.0_25]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:1.8.0_25]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [?:1.8.0_25]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [?:1.8.0_25]