Rails - delayed job is failing after updating rails?

I've updated a couple of gems and what not, namely upgraded rails to version 3.0.7

The project has quite a few delayed_jobs in it, however now when I come to start the jobs in the terminal with 开发者_运维百科the command:

rake jobs:work

I get an error message saying:

undefined method `task' for #<MyAppName::Application:0x10350ab78>

The rake file current has the follwing in it, in realation to delayed jobs I think:

MyAppName::Application.load_tasks

I was wondering if anyone new how to fix this problem and get delayed jobs running again.

Also as far as I can tell there is no problem with adding the jobs to the db, the problem is purly with starting the tasks on my local machen via the terminal.

Thanks!

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This fix worked for me

Undefined method 'task' using Rake 0.9.0

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Did you upgrade rake? Apparently Rake 0.9 broke Rails 3.0.7:

Rake 0.9, which was released yesterday, broke Rails (and others). While we wait for a fix, you'll want gem 'rake', '0.8.7' in your Gemfile. - David Heinemeier Hansson

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Have you tried updating to the latest delayed_job plugin? run bundle install? what happens if you run rails script/delayed_job start?