# Incompatible versioning of InstantRails?

**URL:** <https://www.ruby-forum.com/t/incompatible-versioning-of-instantrails/154584>\
**Category:** Rails\
**Created:** [December 1, 2008, 10:46pm UTC](https://www.ruby-forum.com/t/incompatible-versioning-of-instantrails/154584 "2008-12-01T22:46:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dark-omen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c68b51/32.png) [@dark-omen](https://www.ruby-forum.com/u/dark-omen)\
**Post date:** [December 1, 2008, 10:46pm UTC](https://www.ruby-forum.com/t/incompatible-versioning-of-instantrails/154584/1 "2008-12-01T22:46:34Z")

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I’m trying to get InstantRails running on a different computer than I  
originally started and I’ve gotten stuck. I kind of think it’s a  
versioning issue, but don’t have a real good “reason why” I think that.

Here’s the deal. I’d started fooling around with Rails a while back on  
my laptop and got to a point where I did a check-in to an svn  
repository.

This turned out to be a good thing, as that laptop went away for a  
while.

So, I’ve downloaded InstantRails 2.0 to my desktop, got the database set  
up for this application, and recovered the Ruby code from the  
repository, putting it in rails\_apps.

I then did a 'rails ’ to make sure it would show up in the  
Rails Applications window, and asked the system not to overwrite any  
files it asked to. So I believe I have the same setup as was on my  
laptop, with the possible exception of the version of InstantRails.

When I try to start this application, I see the window start and shut  
down almost immediately. I don’t see anything in the /log directory to  
help me out.

I’m kind of guessing that I didn’t originally develop in 2.0, so there’s  
an incompatibility between my code and this framework.

Can anyone verify that could be a problem, or put me on a path to  
further debug this issue?

Thank you.

---

<div class="post-metadata">

**Author:** ![dark-omen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c68b51/32.png) [@dark-omen](https://www.ruby-forum.com/u/dark-omen)\
**Post date:** [December 1, 2008, 11:10pm UTC](https://www.ruby-forum.com/t/incompatible-versioning-of-instantrails/154584/2 "2008-12-01T23:10:08Z")

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On Dec 1, 9:46 pm, Scott P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> So, I’ve downloaded InstantRails 2.0 to my desktop, got the database set  
> up for this application, and recovered the Ruby code from the  
> repository, putting it in rails\_apps.
> 
> I then did a ‘rails ’ to make sure it would show up in the  
> Rails Applications window, and asked the system not to overwrite any  
> files it asked to. So I believe I have the same setup as was on my  
> laptop, with the possible exception of the version of InstantRails.

Unless you had frozen rails, you could be running a different version  
of rails than the one you developed against.  
I know nothing about instant rails but it would be insane if you  
couldn’t see the output from starting the app

Fred

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<div class="post-metadata">

**Author:** ![dark-omen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c68b51/32.png) [@dark-omen](https://www.ruby-forum.com/u/dark-omen)\
**Post date:** [December 2, 2008, 11:03pm UTC](https://www.ruby-forum.com/t/incompatible-versioning-of-instantrails/154584/3 "2008-12-02T23:03:29Z")

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Scott P. wrote:

> down almost immediately. I don’t see anything in the /log directory to  
> help me out.
> 
> I’m kind of guessing that I didn’t originally develop in 2.0, so there’s  
> an incompatibility between my code and this framework.
> 
> Can anyone verify that could be a problem, or put me on a path to  
> further debug this issue?
> 
> Thank you.

I had that same symptom when running a rails 1.2 app on IR 2. In my  
case it was a routing problem. Try ‘rake routes’ to see if the routes  
as setup will work with what you have.