You have a computer that is running Microsoft BizTalk Server 2006 R2 or BizTalk Server 2009.
You publish some schemas as a Windows Communication Foundation (WCF) service, and you configure the WCF service correctly.
You add the WCF service to a BizTalk project as a service reference.
In this scenario, you cannot build the BizTalk project. Additionally, you may receive various error messages. For example, you may receive an error message that resembles the following:
Schema reference "<schema1.xsd>" is not a valid reference or does not exist in the current project. in <schema.xsd>
This problem occurs because some schemas are lost when you add the schema-based WCF service to the BizTalk project as a service reference.
Cumulative update information
For 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:
2429050 Cumulative update package 1 for BizTalk Server 2009
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
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:
Note 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.
You must have BizTalk Server 2006 R2 installed to apply this hotfix.
You do not have to restart the computer after you apply this hotfix.
You do not have to change the registry after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any previous hotfixes.
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.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
To work around this problem, manually locate the missing schemas files (.xsd). Add these schemas and their references in other schemas to the BizTalk project. Then, rebuild the project.
For more information about how to publish schemas as WCF services, visit the following Microsoft Developer Network (MSDN) Web site:
Microsoft BizTalk Server 2006 R2 Developer Edition, Microsoft BizTalk Server 2006 R2 Enterprise Edition, Microsoft BizTalk Server 2006 R2 Standard Edition, Microsoft BizTalk Server 2009 Branch, Microsoft BizTalk Server 2009 Developer, Microsoft BizTalk Server 2009 Enterprise, Microsoft BizTalk Server 2009 Standard