error LNK2005

[thesad]

I had created class in one classes.h file. I included this file in Form1.h, created Class^ c = gcnew Class(); and call one of function. When I wanted to run my procjet I get error LNK2005: "public: void __clrcall class::Prepare(class System::String ^)" (?Prepare@class@@$$FQ$AAMXP$AAVString@System@@@Z) already defined in Myproject.obj Where could I do wrong?

[prasad_som]

As error suggest its due to defining class::Prepare in more that one place. If this definition is inline, make sure, your header is guarded by multiple inclusion. i.e. We use #pragma once is native.

Prasad Notifier using ATL | Operator new[],delete[][^]

[thesad]

I added #pragma once in first line of classes.h but I still get that error

[sarah_malik]

I dont know if this is the same linking error that I encountered once, but any way try to delete the debug folder from your project, you will find 2 debug folders inside your project, delete the inner one then rebuild your solution.