Minecraft Forums

Made the mistake of downloading the latest OS and now my son's Minecraft won't launch. It allows me to hit play but then just cycles through and doesn't launch the game. Have tried the linux version and also again downloaded the mac launcher again but both have the same issue. The Launcher Log seems to hang on Java but also installed different versions there hasn't helped either. Any thoughts?

Heres the launch log:

20:45:54 INFO]: Minecraft Launcher 1.6.48 (through bootstrap 100) started on osx...
[20:45:54 INFO]: Current time is Oct 26, 2015 8:45:54 PM
[20:45:54 INFO]: System.getProperty('os.name') == 'Mac OS X'
[20:45:54 INFO]: System.getProperty('os.version') == '10.11.1'
[20:45:54 INFO]: System.getProperty('os.arch') == 'x86_64'
[20:45:54 INFO]: System.getProperty('java.version') == '1.8.0_60'
[20:45:54 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[20:45:54 INFO]: System.getProperty('sun.arch.data.model') == '64'
[20:45:54 INFO]: proxy == DIRECT
[20:45:54 INFO]: JFX is already initialized
[20:45:54 INFO]: Refreshing local version list...
[20:45:55 INFO]: Refreshing remote version list...
[20:45:56 INFO]: Refresh complete.
[20:45:57 INFO]: Loaded 4 profile(s); selected 'Fire7412'
[20:45:57 INFO]: Refreshing auth...
[20:45:57 INFO]: Logging in with access token
[20:46:03 INFO]: Getting syncinfo for selected version
[20:46:03 INFO]: Queueing library & version downloads
[20:46:03 INFO]: Download job 'Version & Libraries' started (16 threads, 32 files)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.2-nightly-20140822/lwjgl_util-2.9.2-nightly-20140822.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.2-nightly-20140822/lwjgl-2.9.2-nightly-20140822.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/optifine/OptiFine/1.8.1_HD_U_C7/OptiFine-1.8.1_HD_U_C7.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Download job 'Resources' skipped as there are no files to download
[20:46:03 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/optifine/OptiFine/1.8.1_HD_U_C7/OptiFine-1.8.1_HD_U_C7.jar for job 'Version & Libraries': Couldn't connect to server (responded with 403) but have local file, assuming it's good
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-osx.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/net/minecraft/launchwrapper/1.7/launchwrapper-1.7.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.2-nightly-20140822/lwjgl-2.9.2-nightly-20140822.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/realms/1.7.8/realms-1.7.8.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.2-nightly-20140822/lwjgl-platform-2.9.2-nightly-20140822-natives-osx.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.23.Final/netty-all-4.0.23.Final.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.2-nightly-20140822/lwjgl_util-2.9.2-nightly-20140822.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[20:46:03 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:03 INFO]: Attempting to download /Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7.jar for job 'Version & Libraries'... (try 0)
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/net/minecraft/launchwrapper/1.7/launchwrapper-1.7.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/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
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/realms/1.7.8/realms-1.7.8.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.2-nightly-20140822/lwjgl-platform-2.9.2-nightly-20140822-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.23.Final/netty-all-4.0.23.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[20:46:04 INFO]: Finished downloading /Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7.jar for job 'Version & Libraries': Couldn't connect to server (responded with 403) but have local file, assuming it's good
[20:46:04 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:00.986)
[20:46:04 INFO]: Launching game
[20:46:04 INFO]: Unpacking natives to /Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7-natives-72324325903015
[20:46:04 INFO]: Launching in /Users/Mark/Library/Application Support/minecraft
[20:46:04 INFO]: Half command: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xdock:icon=/Users/Mark/Library/Application Support/minecraft/assets/objects/99/991b421dfd401f115241601b2b373140a8d78572 -Xdock:name=Minecraft -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=/Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7-natives-72324325903015 -cp /Users/Mark/Library/Application Support/minecraft/libraries/optifine/OptiFine/1.8.1_HD_U_C7/OptiFine-1.8.1_HD_U_C7.jar:/Users/Mark/Library/Application Support/minecraft/libraries/net/minecraft/launchwrapper/1.7/launchwrapper-1.7.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar:/Users/Mark/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar:/Users/Mark/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.23.Final/netty-all-4.0.23.Final.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar:/Users/Mark/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/Mark/Library/Application Support/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar:/Users/Mark/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar:/Users/Mark/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar:/Users/Mark/Library/Application Support/minecraft/libraries/com/mojang/realms/1.7.8/realms-1.7.8.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar:/Users/Mark/Library/Application Support/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.2-nightly-20140822/lwjgl-2.9.2-nightly-20140822.jar:/Users/Mark/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.2-nightly-20140822/lwjgl_util-2.9.2-nightly-20140822.jar:/Users/Mark/Library/Application Support/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar:/Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7.jar net.minecraft.launchwrapper.Launch
[20:46:04 ERROR]: Couldn't launch game
java.io.IOException: Cannot run program "/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java" (in directory "/Users/Mark/Library/Application Support/minecraft"): error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) ~[?:1.8.0_60]
at com.mojang.launcher.game.process.direct.DirectGameProcessFactory.startGame(DirectGameProcessFactory.java:14) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:218) [launcher.jar:1.6.48]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:186) [launcher.jar:1.6.48]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:1.6.48]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:1.6.48]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:1.6.48]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_60]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_60]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_60]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_60]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_60]
Caused by: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.forkAndExec(Native Method) ~[?:1.8.0_60]
at java.lang.UNIXProcess.<init>(UNIXProcess.java:248) ~[?:1.8.0_60]
at java.lang.ProcessImpl.start(ProcessImpl.java:134) ~[?:1.8.0_60]
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) ~[?:1.8.0_60]
... 11 more
[20:46:04 INFO]: Deleting /Users/Mark/Library/Application Support/minecraft/versions/1.8.1-OptiFine_HD_U_C7/1.8.1-OptiFine_HD_U_C7-natives-72324325903015

This may work:

1. Open the launcher. Do not press play.

2. Click edit profile.

3. Uncheck the box that says executable.

4. Click save profile.

5. Click play.

If it doesn't work, post the crash report, in a spoiler please.

This worked for me..

1. Launch the launcher( no pun intended)
2. Before clicking on the play button, go create a new profile for a different version(i.e if you're currently playing on forge 1.8, try forge 1.7.10, etc)

This is an easy fix, but it didn't work for me. I had to do additional steps.

1. Launch Finder, hit Command+Shift+G
2. Type in(or copy paste) this ~/Library/Application Support/ (yes with the tilde sign)(close the launcher if open)
3. Rename your minecraft folder to minecraft1(or anything you want)
4. Head over to http://files.minecraftforge.net, download THE INSTALLER, let it download then launch it and let it do its thing(Hopefully you know how to install forge)
5. Go back to application support folder locate your new minecraft folder, goto your old minecraft1(or whatever you named it) folder, copy paste your "saves" folder from the old minecraft1 folder(or whatever you named it) to the new minecraft folder. Same thing with any mods, skins, resources packs, etc...
Note: You can choose to delete your old mc folder after copy pasting everything to yer new folder.

Note 2: This is bound to work, I helped 3 of my minecraft playing friends who are currently on El Capitan, if it doesn't work, please repeat steps once more. If it doesn't work, please copy paste your crash log in a spoiler( in most cases, people can't make heads or tails of your crash logs, so wait till you're asked for it first)

great thank you all. the first suggestion worked by checking off the executable box.