"java.io.FileNotFoundException: /xxxx/launcher.pack.lzma.new (Permission denied)" on downloading launcher

Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 10/10)
Got reply in: 158ms
Exception: java.io.FileNotFoundException: /Users/julieoriol/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Unable to download remote file. Check your internet connection/proxy settings.
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to download while being forced
	at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:83)
	at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:367)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at apple.launcher.LaunchRunner.run(LaunchRunner.java:116)
	at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:51)
	at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)