Learn to love your compiler

yourbasic.org/golang

The Go compiler sometimes confuses and annoys developers who are new to the language.

This is a list of short articles with strategies and workarounds for common compiler error messages that tend to confuse fresh Go programmers.

imported and not used
Programs with unused imports won't compile.
declared and not used
You must use all local variables.
multiple-value in single-value context
When a function returns multiple values, you must use all of them.
syntax error: unexpected newline, expecting comma or }
In a multi-line slice, array or map literal, every line must end with a comma.
cannot assign to …
Go strings are immutable and behave like read-only byte slices.
constant overflows int
An untyped constant is converted before it is assigned to a variable.
syntax error: unexpected ++, expecting expression comma or )
Increment and decrement operations can’t be used as expressions, only as statements.
syntax error: non-declaration statement outside function body
Short variable declarations can only be used inside functions.
missing function body for …
An opening brace cannot appear on a line by itself.