Error message when you compile a BizTalk Server 2004 solution: "Object reference not set to an instance of an object" (918847)

The information in this article applies to:

Microsoft BizTalk Server 2004 Service Pack 1

SYMPTOMS

Consider the following scenario:

Microsoft BizTalk Server 2004 Service Pack 1 (SP1) and the Microsoft .NET Framework 1.1 SP1 are installed on the computer.
In Microsoft Visual Studio, you create a Microsoft BizTalk Server 2004 solution that contains three schemas at the project level.
In the solution, Schema A imports Schema B and Schema C.
In the solution, Schema B imports Schema C.

In this scenario, you receive an error message that resembles the following when you try to build the solution:

Object reference not set to an instance of an object

CAUSE

This issue occurs if you have not installed the Microsoft BizTalk Server 2004 SP1 Update for the .NET Framework 1.1.

RESOLUTION

To resolve this issue, download and install the BizTalk Server 2004 SP1 Update for the .NET Framework 1.1.

To obtain the BizTalk Server 2004 SP1 Update for the .NET Framework 1.1 for Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkId=41672

To obtain the BizTalk Server 2004 SP1 Update for the .NET Framework 1.1 for Microsoft Windows XP and for Microsoft Windows 2000, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkId=41671

MORE INFORMATION

The BizTalk Server 2004 SP1 Update for the .NET Framework 1.1 is a prerequisite for installing BizTalk Server 2004 SP1. For more information about the prerequisites for BizTalk Server 2004 SP1, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=2165147

Modification Type:	Major	Last Reviewed:	5/19/2006
Keywords:	kbBug kbBTS kbtshoot kbprb KB918847 kbAudDeveloper kbAudITPRO