Missing DLL when start the project

Hello guys,
Today i try to open my project but it doesn’t start and say to me that my project.dll was missing. And i don’t understand why, yesterday all was working, and my project is a blueprint project, but i create a c++ class by error. Idon’t know if it’s the problem.

Any idea ?

Open *.uproject file in text editor and remove Module section that looks something like this:

"Modules": [
		"Name": "ProjectName",
		"Type": "Runtime",
		"LoadingPhase": "Default"

Or install Visual Studio and compile the module if you want to start your adventure with C++