Unable to copy a file from obj\Debug to bin\Debug

Question

I have a project in C# and I get this error every time I try to compile the project:

(Unable to copy file \"obj\\Debug\\Project1.exe\" to \"bin\\Debug

Answer 1

Before rebuild the solution, clear the project, stop the IIS and open the "bin" folder property. Uncheck the Read-only Attribute in general tab then rebuild.