I have been trying to run pixelmon for minecraft. I have been able to successfully do this until today. I load up minecraft like normal and press play, the bar does it's thing and it appears to have loaded. Then it just freezes. I have a dimmed play button and nothing happens. I tried this with normal versions and uninstalled the mods. I also redownloaded the launcher.
I had this same problem on my laptop and my desktop! I don't know why this is because my internet is very good. One thing to note even though it might not be relevant the change log wont load either.
Here is the log:
[21:33:44 INFO]: Minecraft Launcher 1.3.5 (through bootstrap 5) started on windows...
[21:33:44 INFO]: Current time is Dec 4, 2013 9:33:44 PM
[21:33:44 INFO]: System.getProperty('os.name') == 'Windows 7'
[21:33:44 INFO]: System.getProperty('os.version') == '6.1'
[21:33:44 INFO]: System.getProperty('os.arch') == 'x86'
[21:33:44 INFO]: System.getProperty('java.version') == '1.7.0_45'
[21:33:44 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[21:33:44 INFO]: System.getProperty('sun.arch.data.model') == '32'
[21:33:44 INFO]: Refreshing local version list...
[21:33:44 INFO]: Refreshing remote version list...
[21:33:44 INFO]: Refresh complete.
[21:33:44 INFO]: Loaded 2 profile(s); selected 'Brendan4848'
[21:33:44 INFO]: Refreshing auth...
[21:33:44 INFO]: Logging in with access token
[21:33:58 INFO]: Getting syncinfo for selected version
[21:33:58 INFO]: Queueing library & version downloads
[21:33:58 INFO]: Download job 'Version & Libraries' started (16 threads, 22 files)
[21:33:59 INFO]: Download job 'Resources' started (16 threads, 1 files)
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.8\launchwrapper-1.8.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\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
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 WARN]: Couldn't download (link was here) for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 WARN]: Couldn't download ://resources.download.minecraft.net/a2/a2dbb90f23b0babe7c569ceca28db49d0c112714 for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 WARN]: Couldn't download (link was here) for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[21:33:59 WARN]: Couldn't download ://resources.download.minecraft.net/a2/a2dbb90f23b0babe7c569ceca28db49d0c112714 for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 WARN]: Couldn't download ://resources.download.minecraft.net/a2/a2dbb90f23b0babe7c569ceca28db49d0c112714 for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 WARN]: Couldn't download ://resources.download.minecraft.net/a2/a2dbb90f23b0babe7c569ceca28db49d0c112714 for job 'Resources'
java.lang.RuntimeException: Server responded with 503
at net.minecraft.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:53) ~[launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:107) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
[21:33:59 ERROR]: Gave up trying to download ://resources.download.minecraft.net/a2/a2dbb90f23b0babe7c569ceca28db49d0c112714 for job 'Resources'
[21:33:59 INFO]: Job 'Resources' finished successfully (took 0:00:00.362)
[21:34:00 INFO]: Finished downloading C:\Users\17millb\AppData\Roaming\.minecraft\versions\1.6.4-Forge9.11.1.935\1.6.4-Forge9.11.1.935.jar for job 'Version & Libraries': Couldn't connect to server (responded with 403) but have local file, assuming it's good
[21:34:00 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:01.412)
[21:34:00 INFO]: Launching game
[21:34:00 INFO]: Looking for old natives & assets to clean up...
[21:34:01 INFO]: Unpacking natives to C:\Users\17millb\AppData\Roaming\.minecraft\versions\1.6.4-Forge9.11.1.935\1.6.4-Forge9.11.1.935-natives-2821997222735
[21:34:01 INFO]: Reconstructing virtual assets folder at C:\Users\17millb\AppData\Roaming\.minecraft\assets\virtual\legacy
[21:34:01 ERROR]: Couldn't unpack natives!
java.io.FileNotFoundException: Source 'C:\Users\17millb\AppData\Roaming\.minecraft\assets\objects\a2\a2dbb90f23b0babe7c569ceca28db49d0c112714' does not exist
at org.apache.commons.io.FileUtils.copyFile(FileUtils.java:1074) ~[launcher.jar:?]
at net.minecraft.launcher.GameLauncher.reconstructAssets(GameLauncher.java:336) ~[launcher.jar:?]
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:217) [launcher.jar:?]
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:577) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:119) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_45]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
Best Answer
Error 503 means that the server is not available at the moment. Mojang might be having a bit of trouble with their servers.
The most you can do right now is just try again later.
See here on wikipedia for more info.