Error when compiling visual studio (In the picture)?

Question

visual studio

Please help solve the problem.

Answer 1

Everything is written in your message, for launch it cannot find the executable, which is obtained after the project is built and lies in the bin folder of the project. If you did not climb your hands into the project settings, then I can assume that you are trying to run the project without first compiling it. Make a project rebuild with your hands and see that there is an executable of your assembly at the path indicated in the message. If the executable is not there, it means:
1) The project is not built for some reason, perhaps there are trivial errors in the code
2) You have added a project to the solution that is not supposed to be launched, for example, a library project.
3) Somehow you changed the project settings and the executable is not where the studio is looking for it.