Possible Version Mismatch?

  • Thread starter Thread starter Joe Reazor
  • Start date Start date
J

Joe Reazor

I just upgraded to v1.1 of the framework and VS.Net 2003. I opened up one
of my solutions and rebuilt my project and all went well. I then ran my
project in debug mode. My program runs up fine, but then I try to open up a
file that it typically works with, my program has custom serialization to a
file for work that users do. This has always worked in the past, as I could
open and resave my files with no problems. Now I am unable to open these
files, that I had been working with in the previous .Net for well over 9
months. The error I get on deserialization says: "Possible Version
mismatch. Type System.Collections.Comparer has 1 members, number of members
deserialized is 0." To me this seems like something directly related to the
Framework upgrade, although I'm not sure what the cause is or exactly how to
fix it and some initial searching around has produced nothing. If anybody
has any ideas, they would be greatly appreciated.

TIA

==============
Joe Reazor
Gorbel Inc.
email: joereaATgorbelDOTcom
 
Hi Joe,

Since you are using a custom serialization, can you offer more information
such as which member in your class will throw the exception when you
deserializing in .NET framework 1.0. the file serialized in .NET framework
1.0.

In addition, can you post the class declaration that you are serializing
and deserializing, so that I can identify your problem.

If the error is caused by version mismatch, you may work around as follows.
1.Let the writer's application run under .NET 1.1. You can either
re-compile the
writer's project in VS.NET2003 or specify the runtime in the configueration
file,
like the following code:
<configuration>
<startup>
<requiredRuntime version="v1.1.4322"/>
</startup>
</configuration>
2. Let the reader's application runs under .NET 1.0, since the binary files
was
generated by the .NET 1.0 applications. You can either re-compile the
reader's
project in VS.NET 2002 or specify the runtime in the configuration file,
like the
following code:
<configuration>
<startup>
<requiredRuntime version="v1.0.3705"/>
</startup>
</configuration>

Please have a try and let me know if this does the work for you.

Regards,
Peter Huang
Microsoft Online Partner Support
Get Secure! www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.

--------------------
From: "Joe Reazor" <[email protected]>
Subject: Possible Version Mismatch?
Date: Mon, 18 Aug 2003 09:16:05 -0400
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I just upgraded to v1.1 of the framework and VS.Net 2003. I opened up one
of my solutions and rebuilt my project and all went well. I then ran my
project in debug mode. My program runs up fine, but then I try to open up a
file that it typically works with, my program has custom serialization to a
file for work that users do. This has always worked in the past, as I could
open and resave my files with no problems. Now I am unable to open these
files, that I had been working with in the previous .Net for well over 9
months. The error I get on deserialization says: "Possible Version
mismatch. Type System.Collections.Comparer has 1 members, number of members
deserialized is 0." To me this seems like something directly related to the
Framework upgrade, although I'm not sure what the cause is or exactly how to
fix it and some initial searching around has produced nothing. If anybody
has any ideas, they would be greatly appreciated.

TIA

==============
Joe Reazor
Gorbel Inc.
email: joereaATgorbelDOTcom
Click to expand...


Regards,
Peter Huang
Microsoft Online Partner Support
Get Secure! www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.
 
Thanks for the response. I had posted this in the framework newsgroup too
since I hadn't had a response here, and got one there much quicker. I did
determine the cause was the SortedList framework object which apparently has
a bug. I discovered a workaround which is to use a SurrogateSelector, but
hopefully MS comes out with a fix too.


==============
Joe Reazor
Gorbel Inc.
email: joereaATgorbelDOTcom
 
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