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Article WebPart Error on Reports Page After Upgrading from v3.2 -> v4.0

by Adam S on Monday, November 11, 2013

After upgrading from v3.2 to v4.0 you may receive this error message when you access the Reports home page on certain projects:

PageLayout:: OnError:
Cannot deserialize the blob of personalization data associated with the current page.
Parameter name: data [System.ArgumentException]
The serialized data is invalid. [System.ArgumentException]
Value cannot be null.
Parameter name: enumType [System.ArgumentNullException]

This article describes the solution to fix this issue.

This occurs because some of the stored user data is specific to v3.2 and is not correctly translating to v4.0.

To fix this errror, please run the following command against your database:


If you have a hosted site, just let us know through our help desk and we shall run it for you.

Article Info
Last Updated: 11/11/2013
Article ID: KB31
# Views: 1702
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