# 1.2.6 to 2.0.1 500 internal server error **URL:** \ **Category:** Rails\ **Created:** [December 14, 2007, 11:02pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207 "2007-12-14T23:02:13Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 14, 2007, 11:02pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/1 "2007-12-14T23:02:13Z")
Trying to upgrade from 1.2.6 to 2.0.1 and I am getting a 500 internal server error after server start up and I try to make any request or even click on ‘about your applications environment’. Am I missing something simple? ---
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 14, 2007, 11:11pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/2 "2007-12-14T23:11:03Z")
On Dec 14, 2007 4:01 PM, Larry E. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Trying to upgrade from 1.2.6 to 2.0.1 and I am getting a 500 internal > server error after server start up and I try to make any request or > even click on ‘about your applications environment’. Am I missing > something simple? What do the logs say about the error? – Greg D. [http://destiney.com/](http://destiney.com/) ---
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 14, 2007, 11:16pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/3 "2007-12-14T23:16:19Z")
On Dec 14, 5:10 pm, “Greg D.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > On Dec 14, 2007 4:01 PM, Larry E. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Trying to upgrade from 1.2.6 to 2.0.1 and I am getting a 500 internal > > server error after server start up and I try to make any request or > > even click on ‘about your applications environment’. Am I missing > > something simple? I was getting this. I read on a site that you needed to delete everything in your tmp/sessions folder. I didn’t have anything in there. But stopping and restarting the server fixed it for me. I was going back and forth between 1.2.6 and 2.0.1 and each time I started 2.0.1 I had to start and restart it twice. Greg DeVore ---
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 14, 2007, 11:23pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/4 "2007-12-14T23:23:57Z")
Hi, you’ll also need to be aware of the error messages that are generated in the shell. I had to make the following changes from memory: a) remove config.breakpoints line in the development.rb b) add the line that mongrel spits out to the config section within environment.rb Note: This will happen when you try to make a request. c) 1.2.6 to 2.0.1 inside the environment.rb d) execute “rake rails:update” in the root directory of your rails application. e) start mongrel and you should be good to go -Conrad ---
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 20, 2007, 4:21pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/5 "2007-12-20T16:21:40Z")
Hi, I had the same issue from my Ubuntu7.10, since like we need to configure somewhere before starting, I have no idea what to do as well. Br, Xi ---
**Author:** ![ledelste](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/85f322/32.png) [@ledelste](https://www.ruby-forum.com/u/ledelste)\ **Post date:** [December 14, 2007, 11:51pm UTC](https://www.ruby-forum.com/t/1-2-6-to-2-0-1-500-internal-server-error/123207/6 "2007-12-14T23:51:30Z")
> Hi, you’ll also need to be aware of the error messages that are generated in > the shell. I had to make the following changes from memory: f) set config.action\_controller.session in config/environment.rb and make sure secret is at least 30 chars long. The easiest is to do: rake log:clear tail -f log/development and hit your homepage. The log is pretty good about what you need to change.