.NET Framework 2.0: FIX: A System.InvalidOperationException exception occurs when you use a WCF client proxy that is generated by the ServiceModel Metadata Utility tool from the service metadata that is in the .NET Framework 3.5

SUPPORT SOLUTION:
You use the ServiceModel Metadata Utility tool (SvcUtil.exe)
to generate a Windows Communication Foundation (WCF) client proxy from service
metadata that is based on the Microsoft .NET Framework 3.5. However, XmlSerializable types are generated together with incorrect XmlEnumAttribute attributes in the client proxy. Therefore, a System.InvalidOperationException exception occurs when you open the client proxy, and you receive
an error message that resembles the following:There was
an error reflecting type “<type
name>”..The problem occurs because the definition of an instance of
the XmlAnyElementAttribute class lacks an XML namespace. Therefore, the System.InvalidOperationException exception occurs when SvcUtil.exe
processes the instance..Hotfix information
2, ‘resolution’);
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.To resolve this problem, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.Prerequisites
3, ‘resolution’);
You must have the .NET Framework 2.0 Service Pack 2 (SP2) or the
.NET Framework 3.5 Service Pack 1 (SP1) installed to apply this hotfix. Restart requirement
3, ‘resolution’);
You do not have to restart the computer after you apply this
hotfix. Hotfix replacement information
3, ‘resolution’);
This hotfix does not replace other hotfixes. File information
3, ‘resolution’);
The English version of this hotfix has the file
attributes (or later file attributes) that are listed in the following table.
The dates and times for these files are listed in Coordinated Universal Time
(UTC). When you view the file information, it is converted to local time. To
find the difference between UTC and local time, use the Time
Zone tab in the Date and Time item in Control
Panel.For all supported x86-based versions of Windows Server 2000, of Windows Server 2003, and of Windows XP
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimePlatformSystem.xml.dll2.0.50727.44252,048,00019-Nov-200907:10×86For all supported x64-based versions of Windows Server 2000, of Windows Server 2003, and of Windows XP
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimePlatformSystem.xml.dll2.0.50727.44252,048,00019-Nov-200906:43×64For all supported IA-64-based versions of Windows Server 2000, of Windows Server 2003, and of Windows XP
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimePlatformSystem.xml.dll2.0.50727.44252,048,00019-Nov-200906:43
IA-64For all supported x86-based versions of Windows Vista SP2 and of Windows Server 2008 SP2
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimeSystem.xml.dll2.0.50727.44282,048,00007-Dec-200919:16For all supported x64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimeSystem.xml.dll2.0.50727.44282,048,00007-Dec-200919:15For all supported IA-64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2
4, ‘resolution’);
Collapse this tableExpand this tableFile nameFile versionFile
sizeDateTimeSystem.xml.dll2.0.50727.44282,048,00007-Dec-200919:27.Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
in the “Applies to” section..For more information about the ServiceModel Metadata Utility
tool, visit the following Microsoft Developer Network (MSDN) Web site:http://msdn.microsoft.com/en-us/library/aa347733.aspx
(http://msdn.microsoft.com/en-us/library/aa347733.aspx)
.Note This is a “FAST PUBLISH” article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use
(http://go.microsoft.com/fwlink/?LinkId=151500)
for other considerations..

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