Select the product you need help with

FIX: Error message when you use the MSIL Assembler (Ilasm.exe) to compile a Visual Studio project: "Invalid TypeDefID of exported type"

Article ID: 928382 - View products that this article applies to.

SYMPTOMS

When you use the Microsoft intermediate language (MSIL) Assembler (Ilasm.exe) in the Microsoft .NET Framework 2.0 to compile a Microsoft Visual Studio project, you may receive an error message that resembles the following:

Dll.il(42) : error -- Invalid TypeDefID of exported type Assembled method Dll::.ctor

***** FAILURE *****

Back to the top | Give Feedback

CAUSE

This problem occurs because two inner classes in the MSIL code have the same name.

Back to the top | Give Feedback

RESOLUTION

Software update information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft .NET Framework 2.0 service pack that contains this hotfix.

To resolve this problem immediately, 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 Web site:

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

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this software update.

Software update replacement information

This software update does not replace any other software updates.

File information

The English version of this software update 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.

The Microsoft .NET Framework 2.0, Itanium Architecture

Collapse this tableExpand this table

File name	File version	File size	Date	Time
Ilasm.exe	2.0.50727.248	672,520	28-Nov-2006	04:44
Ilasm.exe	2.0.50727.248	226,056	28-Nov-2006	08:59

The Microsoft .NET Framework 2.0, x64

Collapse this tableExpand this table

File name	File version	File size	Date	Time
Ilasm.exe	2.0.50727.248	331,016	28-Nov-2006	04:35
Ilasm.exe	2.0.50727.248	226,056

The Microsoft .NET Framework 2.0, x86

Collapse this tableExpand this table

File name	File version	File size	Date	Time
Ilasm.exe	2.0.50727.248	226,056	28-Nov-2006	08:59

Back to the top | Give Feedback

MORE INFORMATION

After you apply this software update, you must type the full path of a nested class when a multi-module assembly contains double-nested public types. For example, you use code that resembles the following code example before you apply the software update.

.class extern public forwarder Encl{
.assembly extern multi_supplier
}
.class extern public forwarder Nest1{
.class extern Encl
}
.class extern public Nest2{
.class extern Nest1
}

After you apply the software update, the code must resemble the following code example.

.class extern public forwarder Encl{
.assembly extern multi_supplier
}
.class extern public forwarder Nest1{
.class extern Encl
}
.class extern public Nest2{
.class extern Encl/Nest1

Back to the top | Give Feedback