Converting visual 2008 to 2010

Question

0.00/5 (No votes)

See more:

HI I was using visual studio 2008
now I upgraded to 2010
I cant run the application showing an error
"

VB

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

"

could you please help me on this ..
i have no idea in this error

Posted 25-Aug-14 2:12am

sushma_bhardwaj

Updated 25-Aug-14 18:54pm

VICK

v3

Add a Solution

1 solution

Add a Solution

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

E.F. Nijboer · Accepted Answer · 2014-08-25T02:32:00

Solution 1

Just generate a new one and add it:
http://aspnetresources.com/tools/machineKey[^]

Good luck!

Posted 25-Aug-14 2:32am

E.F. Nijboer

Comments

sushma_bhardwaj 25-Aug-14 11:14am

Hi i have generated and machine key but its not working .. same error.... is there any other mistake?

because it was working properly in vs 2008. i dont know whats wrong ..

E.F. Nijboer 26-Aug-14 9:01am

Try using AutoGenerate. Check the link. On the bottom of the page in the remarks you find an example:

http://msdn.microsoft.com/en-us/library/vstudio/w8h3skw9%28v=vs.100%29.aspx

Converting visual 2008 to 2010

1 solution

Solution 1

Add your solution here

Preview 0

Converting visual 2008 to 2010

1 solution

Solution 1

Add your solution here

Preview 0

Existing Members

...or Join us