hexadecimal value 0x00 is an invalid character, web site crashed when upgraded to .NET 3.5

11. DNN, Wordpress & Other Applications > 06. Troubleshoot

Problem

When we upgraded to Microsotf .NET Framework 3.5, some web sites crashed. Here are error messages.

     Description: An error occurred during the parsing of a resource required to service this request.   
    Please review the following specific parse error details and modify your source file appropriately.
    


     Parser Error Message: '.', hexadecimal value 0x00, is an invalid character. Line 2, position 1.


    Source Error:
Line 1: <?xml version="1.0" encoding="utf-8"?>
Line 2: <xs:schema id="DataSetAdmin"
Line 3: <xs:annotation>
Line 4: <xs:appinfo source="urn:schemas-microsoft-com:xml-msdatasource">
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

Solution

Remove encoding attribute from your xml document.

From 
<?xml version="1.0" encoding="utf-8"?>
To 
<?xml version="1.0"?>
Article ID: 164, , Modified: February 17 at 8:58 PM

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