Missing LV packed library (lvlibp) dependency when calling .NET interop assembly (dll)

[bokorpet]

Hi,

I'd like to use my LV application from .NET. To do that I use the .NET interop assembly (dll) export by LV. My LV application uses LV packed libraries (lvlibp), which seems to cause the problem of .NET not findig the packed library.

I attach an example LV project and the corresponding DLL file plus a Visual Studio project (.NET).

The dependencies in this toy project are as follows:

SimpleTestClass.lvclass.increment.vi calls PackLibrary.lvlibp:PackLibraryClass.lvclass.increment.vi.

The DLL is generated to wrap SimpleTestClass.lvclass.increment.vi. The error occurs when I try to instantiate SimpleTestClass in .NET. The error says that the PackLibrary.lvlibp:PackLibraryClass.lvclass.increment.vi cannot be found.

Any ideas?

.NET project dependencies:

Error thrown in Visual Studio:

[bokorpet]

Let me answer my own question 🙂

It turns out that the packed library file (lvlibp) must be placed next to the EXE file (and not next to the DLL!) generated by .NET.

By the way, there is a small error in the attached projects as member VIs are not saved correctly.

Peter