错误：每个套接字地址通常只能使用一种

Question

I have been using Go/Golang for a while. Every time I need to compile code I simply type go run *.go into Git bash. When I needed to terminate I used CTRL+C. And if I need to compile again I would use the same command go run *.go. Recently for some reason when I press CTRL+C it shows as if it terminated,but when I write again go run *.go it complains by saying Only one usage of each socket address (protocol/network address/port) is normally permitted. . And I open task manager and see on main.exe is on background processes. I end by hand and call this again it works. How can fix that so it terminates as before when I click on CTRL+C?