Article ID: 972752 - View products that this article applies to.
On a computer that is running Microsoft BizTalk Server 2009, you perform one of the following actions:
Load Assembly Error
Unable to load assembly "<path of an assembly>".[System.Xml.Schema.XmlSchemaException] The content type of the base type must not be a simple type definition.
This problem occurs because of an error in the XMLSchema.Compile method. This method is called by BizTalk Server 2009 to compile an XML schema (.xsd) file when an orchestration is published as a Web service or as a WCF service. This is a known issue that is described in the following Microsoft Knowledge Base (KB) article:
(http://support.microsoft.com/kb/957206/ )FIX: Error message when you use the XMLSchema.Compile method to compile an XML schema (XSD) file: "The content type of the base type must not be a simple type definition"
Cumulative updated informationFor BizTalk Server 2009, the hotfix that resolves this issue is included in Cumulative Update 1 for BizTalk Server 2009.
For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/2429050/ )Cumulative update package 1 for BizTalk Server 2009
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
PrerequisitesYou must have BizTalk Server 2009 installed to apply this hotfix.
Restart requirementYou do not have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace other hotfixes.
File informationThe 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.
Collapse this tableExpand this table
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about how to publish orchestrations as WCF services, visit the following Microsoft Developer Network (MSDN) Web site:
How to Use the BizTalk WCF Service Publishing Wizard to Publish Orchestrations as WCF ServicesFor more information about how to publish orchestrations as Web services, visit the following MSDN Web site:
How to Use the BizTalk Web Services Publishing Wizard to Publish an Orchestration as a Web ServiceFor more information about BizTalk Server hotfixes, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/2003907/ )Information on BizTalk Server hot fixes
Article ID: 972752 - Last Review: December 8, 2010 - Revision: 2.0