Error : there are no registrable types in the built assembly

P

Prigozhin Roman

I'm trying to create a com object, code looks fine for me ( like other com
objects I've created )
but this time I'm getting error : "There are no registrable types in the
built assembly"
Anyone knows how to fix it ?

About my object :
+ In project options I have option "Register for COM Interop" checked
+ In my COM Object I'm referencing other C# dll which are not signed (
without strong names )
+ My COM object is not signed

Here you can see some code :

using System.Runtime.InteropServices;

using System;

using System.Data;

using System.Data.OleDb;

using System.IO;

using System.Text;

using OCSClassLibraries.VopUtilities;

using OCSClassLibraries.FileUtilities;





namespace OCS_BlueContactlessPass2_COM

{


[Guid("15D1806A-B83C-4d74-806C-28E9FF647E9A")]

public interface InputFileGenerator_Interface

{

bool GenerateJobFile(char batchCode, out string error);

}


// Events interface

[Guid("6CF790ED-203C-4a06-A1E7-C0F539E2846F"),

InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]

public interface InputFileGenerator_Events

{

}


[Guid("E6AE937D-DEC8-4b15-B6E2-D354B93E16FD"),

ClassInterface(ClassInterfaceType.None),

ComSourceInterfaces(typeof(InputFileGenerator_Events))]

public class InputFileGenerator : InputFileGenerator_Interface

{

string wipFile;

string inputFileDir; // input JVD file for VOP1015


public InputFileGenerator(string wipFileName, string inputFileDir)

{

this.wipFile = wipFileName;

this.inputFileDir = inputFileDir;

}



........................ etc


Thanks,
Roman Prigozhin
 
D

Dmitriy Lapshin [C# / .NET MVP]

Hi,

Ensure you don't have [assembly:ComVisible(false)] in AssemblyInfo.cs.
 
P

Prigozhin Roman

I've checked this, and I don't have this line in my AssemblyINfo.cs file.
These are the only parameters I have in the file.
[assembly: AssemblyTitle("")]

[assembly: AssemblyDescription("")]

[assembly: AssemblyConfiguration("")]

[assembly: AssemblyCompany("")]

[assembly: AssemblyProduct("")]

[assembly: AssemblyCopyright("")]

[assembly: AssemblyTrademark("")]

[assembly: AssemblyCulture("")]

[assembly: AssemblyDelaySign(false)]

[assembly: AssemblyKeyFile("")]

[assembly: AssemblyKeyName("")]


Dmitriy Lapshin said:
Hi,

Ensure you don't have [assembly:ComVisible(false)] in AssemblyInfo.cs.

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

Prigozhin Roman said:
I'm trying to create a com object, code looks fine for me ( like other com
objects I've created )
but this time I'm getting error : "There are no registrable types in the
built assembly"
Anyone knows how to fix it ?
Click to expand...
Click to expand...
 
P

Prigozhin Roman

Error was finaly found, the problem is in overloaded constructor.
[Guid("15D1806A-B83C-4d74-806C-28E9FF647E9A")]

public interface InputFileGenerator_Interface

{

bool GenerateJobFile(char batchCode, out string error);

}


// Events interface

[Guid("6CF790ED-203C-4a06-A1E7-C0F539E2846F"),

InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]

public interface InputFileGenerator_Events

{

}


[Guid("E6AE937D-DEC8-4b15-B6E2-D354B93E16FD"),

ClassInterface(ClassInterfaceType.None),

ComSourceInterfaces(typeof(InputFileGenerator_Events))]

public class InputFileGenerator : InputFileGenerator_Interface

{

private string wipFile;

private string inputFileDir; // input JVD file for VOP1015


public InputFileGenerator(string wipFileName, string inputFileDir) <----
this is the error

{

this.wipFile = wipFileName;

this.inputFileDir = inputFileDir;

}

....... etc
 
D

Dmitriy Lapshin [C# / .NET MVP]

What's strange still is that the compiler (or the COM registration tool)
hasn't complained about parameterized constructors at all. These are
incompatible with COM by definition, so I'd expect at least a warning
message to be issued.

The actual error produced, obviously, is loosely related to the problem.
 
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