in the newest minecraft launcher when i click the play button it loads but then the play button lights up again you press it again then it just dose it again and i can't play minecraft

I have the same problem
look in the development console
it doesnt download something
im on the the mac

Ater having this issue:
Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.

If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".

[16:43:51 INFO]: Minecraft Launcher 1.4.2 (through bootstrap 5) started on windows...
[16:43:51 INFO]: Current time is May 5, 2014 4:43:51 PM
[16:43:51 INFO]: System.getProperty('os.name') == 'Windows 7'
[16:43:51 INFO]: System.getProperty('os.version') == '6.1'
[16:43:51 INFO]: System.getProperty('os.arch') == 'amd64'
[16:43:51 INFO]: System.getProperty('java.version') == '1.8.0_05'
[16:43:51 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[16:43:51 INFO]: System.getProperty('sun.arch.data.model') == '64'
[16:43:51 INFO]: Refreshing local version list...
[16:43:52 INFO]: Refreshing remote version list...
[16:43:53 INFO]: JFX is already initialized
[16:43:53 INFO]: Refresh complete.
[16:43:55 INFO]: Loaded 9 profile(s); selected 'Copy of louism11'
[16:43:55 INFO]: Refreshing auth...
[16:43:55 INFO]: Logging in with access token
[16:46:09 INFO]: Getting syncinfo for selected version
[16:46:10 INFO]: Queueing library & version downloads
[16:46:10 INFO]: Download job 'Version & Libraries' started (16 threads, 28 files)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[16:46:10 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Download job 'Resources' skipped as there are no files to download
[16:46:11 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.16\twitch-platform-5.16-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.16\twitch-platform-5.16-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Attempting to download C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9.jar for job 'Version & Libraries'... (try 0)
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:11 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:12 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:13 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:13 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[16:46:13 INFO]: Finished downloading C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9.jar for job 'Version & Libraries': Used own copy as it matched etag
[16:46:13 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:03.466)
[16:46:13 INFO]: Launching game
[16:46:14 INFO]: Unpacking natives to C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9-natives-593853228310
[16:46:14 INFO]: Launching in C:\Users\Louis\AppData\Roaming\.minecraft
[16:46:14 INFO]: Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -Djava.library.path=C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9-natives-593853228310 -cp C:\Users\Louis\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\Louis\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9.jar net.minecraft.client.main.Main
[16:46:14 ERROR]: Couldn't launch game
java.io.IOException: Cannot run program "C:\Program Files (x86)\Java\jre7\bin\javaw.exe" (in directory "C:\Users\Louis\AppData\Roaming\.minecraft"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(Unknown Source) ~[?:1.8.0_05]
at com.mojang.launcher.game.process.direct.DirectGameProcessFactory.startGame(DirectGameProcessFactory.java:14) ~[launcher.jar:?]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:204) [launcher.jar:?]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:189) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:120) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_05]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_05]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_05]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_05]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_05]
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_05]
at java.lang.ProcessImpl.<init>(Unknown Source) ~[?:1.8.0_05]
at java.lang.ProcessImpl.start(Unknown Source) ~[?:1.8.0_05]
... 12 more
[16:46:14 INFO]: Deleting C:\Users\Louis\AppData\Roaming\.minecraft\versions\1.7.9\1.7.9-natives-593853228310