[IronPython] Installing IronPython 2.7b1 over 2.7a1

Jones, Larry Larry.Jones at aspentech.com
Fri Oct 29 15:11:00 CEST 2010

I saw the same behavior.

I assumed that it was because I was installing a beta version atop an
alpha version. 

Uninstalling the alpha version and re-installing the beta version worked
without a hitch.

-----Original Message-----
From: users-bounces at lists.ironpython.com
[mailto:users-bounces at lists.ironpython.com] On Behalf Of Dino Viehland
Sent: Thursday, October 28, 2010 8:14 PM
To: Discussion of IronPython
Subject: Re: [IronPython] Installing IronPython 2.7b1 over 2.7a1

Tony wrote:
> Hi,
> Has anyone else had any issues with this?  When I try to do it I get
> an error "A later version of IronPython 2.7 is already installed".
> However, the only version of IronPython 2.7 that is installed is alpha
> 1 (""); 2.6 ("2.6.10920.0") is also installed.  I'm using the
> msi installer from codeplex, which says it is "IronPython 2.7
> (2.7.0709)".
> I presume I can fix this by uninstalling a1 and then installing b1 - I
> haven't had a chance to try that yet.
> If no-one else has seen this, then I'm inclined to assume this is
> something odd with my machine.  Otherwise I can open a bug.

I saw someone w/ this issue on twitter or stackoverflow or somewhere
that.  Uninstalling A1 and installing B1 should work.  Maybe "0709" is 
considered less than "1" due to the leading zero and we just need to be 
a little more careful in the future w/ the version numbers.

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