The form has been closed

This is the most common error that occurs while designing the Info-Path form. It also says the form template that is published in the Form library location is invalid. I had this issue a lot of times and most of the times the common thing i was missing while designing the New form is, i am not checking the option "Enable browser-compatible features only" while opening a "Blank" form. Once i am able to check that option while designing the form, then it was working fine for me. below is the screen capture for reference.