minecraft launcher says "game output"

\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.17\authlib-1.5.17.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.6\realms-1.6.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar;C:\Users\kokeefe1579\AppData\Roaming\.minecraft\versions\1.8\1.8.jar net.minecraft.client.main.Main
[20:05:28 ERROR]: Couldn't launch game
java.io.IOException: Cannot run program "C:\Program Files (x86)\Java\jre7\bin\javaw.exe" (in directory "C:\Users\kokeefe1579\AppData\Roaming\.minecraft"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(Unknown Source) ~[?:1.8.0_25]
at com.mojang.launcher.game.process.direct.DirectGameProcessFactory.startGame(DirectGameProcessFactory.java:14) ~[launcher.jar:?]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:208) [launcher.jar:?]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:185) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_25]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method) ~[?:1.8.0_25]
at java.lang.ProcessImpl.<init>(Unknown Source) ~[?:1.8.0_25]
at java.lang.ProcessImpl.start(Unknown Source) ~[?:1.8.0_25]
... 12 more
[20:05:28 INFO]: Deleting C:\Users\kokeefe1579\AppData\Roaming\.minecraft\versions\1.8\1.8-natives-90393850950776