ここを参考に
http://okogeki.hatenablog.com/entry/2014/06/10/152035
/Applicationsフォルダの権限設定がおかしいらしい
ls -l / total 93 drwxr-xr-x+ 301 20821 wheel 10234 11 24 14:04 Applications drwxrwxr-x@ 11 root wheel 374 7 25 2014 Developer drwxr-xr-x+ 78 root wheel 2652 10 23 18:08 Library drwxr-xr-x@ 2 root wheel 68 10 1 21:59 Network drwxr-xr-x@ 4 root wheel 136 10 23 18:10 System lrwxr-xr-x 1 root wheel 49 4 24 2014 User Information -> /Library/Documentation/User Information.localized drwxr-xr-x@ 6 root admin 204 10 1 22:11 Users drwxrwxrwt@ 6 root admin 204 11 24 14:03 Volumes drwxr-xr-x@ 3 root wheel 102 5 28 2014 asix_temp drwxr-xr-x@ 39 root wheel 1326 10 23 18:10 bin drwxrwxr-t@ 2 root admin 68 10 1 21:59 cores dr-xr-xr-x 3 root wheel 4544 11 24 10:39 dev lrwxr-xr-x@ 1 root wheel 11 10 1 21:57 etc -> private/etc -rw-r--r-- 1 root wheel 18725 11 24 13:36 flash.log dr-xr-xr-x 2 root wheel 1 11 24 10:39 home dr-xr-xr-x@ 3 root wheel 102 9 28 2013 home-preserved -rw-r--r--@ 1 root wheel 313 8 23 11:35 installer.failurerequests drwxrwxrwt@ 3 root wheel 102 3 17 2014 lost+found dr-xr-xr-x 2 root wheel 1 11 24 10:39 net drwxr-xr-x@ 7 root wheel 238 11 24 12:32 opt drwxr-xr-x@ 6 root wheel 204 10 1 21:59 private drwxr-xr-x@ 61 root wheel 2074 10 23 18:10 sbin lrwxr-xr-x@ 1 root wheel 11 10 1 21:57 tmp -> private/tmp drwxr-xr-x@ 13 root wheel 442 11 2 15:36 usr lrwxr-xr-x@ 1 root wheel 11 10 1 21:58 var -> private/var
drwxr-xr-x+ 301 20821 wheel 10234 11 24 14:04 Applications
所有者20821ってなんだ
sudo chown root /Applications
でrootに変更したら動いた。
