Possible to just build Desktop game and Copy to new Solution?

Is it possible to build a Directx version of my game (because this is the only version that will build and Start on my PC rn) and simply copy the game files (constructor and content, right?) to another solution, like one for Android or iOS? I can’t get a Cross Platform Desktop App (the one I’d like to use) to work, as I can build the project, but can’t start it (see the screen) on my PC.