Problem scenario
You are running a Go program. You see this message about "command-line-arguments":
non-name m1["foo"] on left side of :=
What should you do?
Possible Solution
Can you try to use "=" instead of ":="? This may fix your problem.
The := is a variable declaration and an assignment. If your map has been declared, individual values in it should be assigned with an "=" (equals sign).