Microsoft KB Archive/926344

= FIX: Error message in visual studio when you try to open a BizTalk Server 2006 map: &quot;Failed to load the source schema&quot; =

Article ID: 926344

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft BizTalk Server 2006 Standard Edition
 * Microsoft BizTalk Server 2006 Enterprise Edition
 * Microsoft BizTalk Server 2006 Developer Edition

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SYMPTOMS
In Microsoft visual studio, you receive an error message that resembles the following when you try to open a Microsoft BizTalk Server 2006 map:

Failed to load the source schema. Would you like to select another schema using BizTalk Type Picker?”

Note In this error message, the  placeholder represents the name of a schema in a referenced project.

When you click Yes, you receive an error message that resembles the following:

Failed to load the source schema

When you exit visual studio, you receive an error message that resembles the following:

Microsoft visual studio has encountered a problem and needs to close



CAUSE
This problem occurs when the schema hierarchy is not a ComObject type. The BizTalk Schema Picker processes all hierarchies as ComObject types.



Hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
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.

Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
This problem is known to occur when the unit testing tools are installed on the computer. The unit testing tools are included in the following versions of Microsoft visual studio:
 * Microsoft visual studio 2005 Team Suite
 * Microsoft visual studio 2005 Team Edition for Software Developers
 * Microsoft visual studio 2005 Team Edition for Software Testers

