CODEWITHSUNDEEP
c++vb.netreference
Tithi Patel
Tithi Patel

Reputation: 777

Error C2653. The type or namespace name could not be found (Reference present) in C++

I was trying to give vb.net dll reference to C++ Project. I was able to add the reference successfully but I am unable to use it in my code.

I have following reference:

enter image description here

I am trying to use it like:

Configuration::MyClass::MyFunction()

I got the following error:

error C2653: 'Configuration' : is not a class or namespace name

What am I doing wrong? Do I need to add a header file?

Upvotes: 4

Views: 744

Answers (3)

dnl-blkv
dnl-blkv

Reputation: 2128

On the one hand, according to this answer, it might be just a Visual Studio failure.

On the other hand, the other answer suggests that it could be a dependency issue. Also, you may have the class with the same name defined twice in different libraries.

Anyway, consider re-checking all the dependencies and the Visual Studio setup.

Here is another answer regarding the topic.

UPD: Check if you are not trying to define a compound namespace, which is illegal in C++.

Upvotes: 0

herohuyongtao
herohuyongtao

Reputation: 50717

Make sure you have exposed assembly to the COM subsystem by it's 'ComVisible' property. Then, you should register the assembly to expose it to COM 'subscribers'.

Only then you can use the assembly namespace from your C++ code.

Check out How to call a managed DLL from native Visual C++ code for step-by-step guidelines.

Upvotes: 0

Shell
Shell

Reputation: 6849

Place this code at the top of the class

<ComVisible(True)> _
<Guid("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX")> _
<ClassInterface(ClassInterfaceType.None)> _

read this thread. I think this will help you. http://social.msdn.microsoft.com/Forums/en-US/3f30b414-2ea3-4a54-b4cb-24e48fdfda3e/calling-vbnet-dll-from-c?forum=vbgeneral

Upvotes: 2

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