always invalid token

[19:46:38 INFO]: Minecraft Launcher 1.6.19 (through bootstrap 100) started on windows...
[19:46:38 INFO]: Current time is Aug 14, 2015 7:46:38 PM
[19:46:38 INFO]: System.getProperty('os.name') == 'Windows 10'
[19:46:38 INFO]: System.getProperty('os.version') == '10.0'
[19:46:38 INFO]: System.getProperty('os.arch') == 'amd64'
[19:46:38 INFO]: System.getProperty('java.version') == '1.8.0_25'
[19:46:38 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[19:46:38 INFO]: System.getProperty('sun.arch.data.model') == '64'
[19:46:38 INFO]: proxy == DIRECT
[19:46:38 INFO]: JFX is already initialized
[19:46:40 INFO]: Refreshing local version list...
[19:46:40 INFO]: Refreshing remote version list...
[19:46:47 INFO]: Refresh complete.
[19:46:49 INFO]: Loaded 6 profile(s); selected 'snapshots'
[19:46:49 INFO]: Refreshing auth...
[19:46:49 INFO]: Logging in with access token
[19:46:50 ERROR]: Exception whilst logging into profile
com.mojang.authlib.exceptions.InvalidCredentialsException: Invalid token.
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:63) ~[launcher.jar:1.6.19]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logInWithToken(YggdrasilUserAuthentication.java:132) ~[launcher.jar:1.6.19]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logIn(YggdrasilUserAuthentication.java:55) ~[launcher.jar:1.6.19]
at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:215) [launcher.jar:1.6.19]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:169) [launcher.jar:1.6.19]
at java.util.concurrent.Executors$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]