The project "libbox2d" cannot be started directly

Am using windows 10 and I have just created a new project ive tried compiling it on android and the hello world scene is okay. When compiling for windows 10 universal I get the error : The project ‘libbox2d’ cannot be started directly. I am using cocos2d-x 3.11 I havnt even began creating the game was only testing out the hello world project

Did you add box2d to your project?

I just opened the solution file generated

Sounds to me like you haven’t specified the start up project in VS (or whatever IDE you’re using) - so it is trying to run the libbox2d project rather than your own project