我刚刚在Heroku的应用中添加了delayed_job。一切都在当地工作正常，但在推到Heroku后停止了。 rake job worker似乎崩溃了，并为Jammit提供了这个错误：
==> dj-3625324.log (crash) <==
(in /disk1/home/slugs/352624_647fcb1_cd2f-0ad62d88-55e5-45dd-81ff-560f42525b6e/mnt)
Jammit Warning: Asset compression disabled -- Java unavailable.
rake aborted!
Broken pipe
/disk1/home/slugs/352624_647fcb1_cd2f-0ad62d88-55e5-45dd-81ff-560f42525b6e/mnt/Rakefile:8
(See full trace by running task with --trace)
-----> Your application crashed.
Examine the backtrace above this message to debug.
如何调试这样的问题来解决？
由于